KAST “Blockchain Rio” Campaign – Terms & Conditions (Brazil‑Only)

Effective Date: 5 August 2025
Campaign Period: 00:00 BRT 5 Aug 2025 – 23:59 BRT 12 Aug 2025 (subject to extension by up to nine (9) days at the Company’s sole discretion)

1. Agreement, Acceptance and Overview

1.1 These promotional campaign terms ("Terms") form a binding agreement between you ("you", "your" or the "Participant") and Troia Corp and its affiliates operating under the “KAST” brand ("KAST", "we", "us" or the "Company").
1.2 By (a) opening or maintaining a KAST Account, (b) claiming or attempting to claim a Promo Code or Raffle Prize (each as defined below), or (c) otherwise continuing to use any KAST product or service during the Campaign Period, you acknowledge that you have read, understood and agree to be bound by these Terms and all other Governing Documents (as defined in Clause 2). 1.3 If you do not agree to these Terms, you must refrain from participating and may opt‑out by closing your KAST Account or following any opt‑out procedure we make available.

2. Scope and Contractual Incorporation

These Terms are supplemental to, and form an integral part of, (a) the KAST Terms and Conditions of Service ("Master Terms"), (b) the KAST Referral Programme Terms, and (c) any guidelines, policies or notices we issue in relation to this Campaign (collectively, the "Governing Documents"). In the event of conflict, these Terms prevail solely as regards this Campaign.

3. Definitions

Unless otherwise stated, capitalised terms have the meaning set out below or in the Master Terms.

• Campaign means the promotional programme titled “Blockchain Rio” governed by these Terms.
• Campaign Period has the meaning in the header above.
• Promo Code means a unique alphanumeric code distributed by the Company under Clause 6.1.
• Qualified Spend means cumulative net Eligible Transactions of at least USD 50 (or local equivalent) settled during the Campaign Period, excluding any (i) transactions that are reversed, refunded, or disputed, and (ii) any chargebacks or failed payments.
• Raffle means the random prize draw described in Clause 7.
• Reward Pool means (i) up to 10,000 Promo Codes (Plan A) or 3,000 Promo Codes (Plan B) and (ii) three (3) cash prizes of R$10,000 each.
• Territory means the Federative Republic of Brazil.

4. Campaign Timeline

The Campaign Timeline may be extended at KAST’s own discretion.

• Distribution of Promo Codes: 5 Aug 2025 – 12 Aug 2025
• Latest time to redeem a Promo Code: 23:59 BRT 12 Aug 2025 (unless extended)
• Latest time to hit Qualified Spend: 23:59 BRT 12 Aug 2025 (unless extended)
• Raffle draw & winners notified: On or about 20 Aug 2025
• Credit of Raffle prizes: Within 14 days after winner verification

5. Eligibility 

5.1 New User Eligibility

A person is eligible to participate as a New User if he or she: (a) resides in Brazil or Brazilian citizen and opens a KAST Account during the Campaign Period;
(b) successfully completes all know‑your‑customer (KYC) verification steps;
(c) has never previously held a KAST Account (solely or jointly); and
(d) is not otherwise prohibited under Applicable Law or the Governing Documents.

5.2 Existing User Eligibility (Referral Component)

An existing KAST user ("Referrer") may participate in the referral element of the Campaign if their Account is in good standing and they otherwise satisfy the Governing Documents.

5.3 Ineligibility

The following are ineligible:

• Any user whose Account was previously suspended or terminated by the Company;
• Users outside the Territory;
• Corporate or institutional accounts; and
• Anyone whom the Company, acting reasonably but in its sole discretion, deems to be abusing the Campaign.

6. Promo Code Distribution & Redemption Mechanics 

6.1 Distribution. Limited number of Promo Codes will be issued first‑come‑first‑served via (i) e‑mail blast to event registrants and/or (ii) physical “dummy” cards handed out at the KAST booth. Each Promo Code is single‑use and non‑transferable.

6.2 Redemption Steps.

To claim the Free Physical K Card (retail value USD 100):

1. Download the KAST App and sign up.
2. Enter the Promo Code in‑app during the Campaign Period.
3. Complete KYC verification.
4. Meet the Qualified Spend of at least USD 50 using any KAST‑issued payment method within the Campaign Period.
5. Order your physical K Card. The standard issuance fee will be waived automatically once all conditions are met.

6.3 Limits & Conditions.

• One Promo Code per natural person. Attempts to redeem multiple codes will void all related claims.
• Promo Codes have no cash value, cannot be sold, exchanged or withdrawn, and expire at the end of the Campaign Period.
• Promo Codes not redeemed by the deadline will lapse automatically and the Company will have no liability for unclaimed codes.

7. Raffle Mechanics

7.1 Automatic Entry.

Every New User who (i) validly redeems a Promo Code and (ii) achieves the Qualified Spend within the Campaign Period will receive one (1) automatic entry into the Raffle.

7.2 Prizes.

Three (3) winners will each receive R$10,000 in the USD‑stablecoin equivalent credited to their KAST Account within 14 days of winner verification.

7.3 Draw & Verification.

Winners will be selected at random using a computerised process supervised by an independent observer. The Company will attempt to notify winners by e‑mail or in‑app message and may require identity confirmation. Failure to respond within five (5) calendar days may result in forfeiture and selection of an alternate winner.

7.4 Referral Bonus.

If a winning New User was referred via a valid referral code, the associated Referrer will receive one premium KAST card (as decided by the Company) issued free of charge. The premium card carries no cash alternative which is subject to territory restrictions.

8. Excluded Transactions & Fair Usage

Transactions classified under the Excluded Merchant Category Codes (MCCs) in Schedule 1 or otherwise designated by the Company as high‑risk, quasi‑cash or prohibited will not count toward Qualified Spend. The fair‑usage, fraud and abuse provisions of the Master Terms apply in full.

9. Taxes

Participants are solely responsible for any tax liability arising from or in connection with any Promo Code, Raffle entry or Prize. The Company makes no representation regarding tax treatment.

10. Modification, Suspension & Termination

KAST may modify, suspend or terminate the Campaign (in whole or in part) at any time for any reason, including without limitation if the Promo Codes or Prize budget is exhausted. All Company determinations are final, conclusive and binding and not subject to appeal.

11. Disclaimers & Limitation of Liability

To the maximum extent permitted by law, the Company’s aggregate liability to any participant shall not exceed the monetary value of the uncredited Prize legitimately won by that participant. The Company shall not be liable for indirect, incidental or consequential damages, nor for technical failures, lost entries, or events beyond its reasonable control.

12. Governing Law & Dispute Resolution

These Terms—and any non‑contractual obligations arising out of or in connection herewith—are governed by the laws specified in the Master Terms. Disputes shall be resolved exclusively in accordance with the dispute‑resolution mechanism set out therein.

13. Miscellaneous

• Severability. If any provision is held invalid, the remainder shall remain in force.
• Assignment. Participants may not assign rights or obligations under these Terms; the Company may do so without notice.
• No Waiver. Failure by the Company to enforce any provision shall not constitute a waiver.
• Survival. Clauses 7.2, 9, 11 and 12 survive expiry or termination.

Schedule 1 – Excluded Merchant Category Codes (Non‑Exhaustive)

• 5947 – Gift, souvenir, novelty & stored‑value shops
• 6051 – Quasi‑Cash / Crypto purchases
• 4829, 6538, 6540 – Money orders, wire transfers, POI Funding
• 7299 – Misc. personal‑services (high‑risk)
• Any MCC the Company or card schemes classify as High‑Risk, Gambling or Prohibited.

This Schedule may be updated at any time without prior notice.