*Terms and conditions
1. Collect receipts from purchases at stores in Siam Center and Siam Discovery (no more than 2 receipts may be combined per 1 redemption) to redeem a SIAM GIFT CARD on the same day only at the Information Counter on G and M floors, Siam Center, and the Information Counter on G floor, Siam Discovery.
2. The SIAM GIFT CARD can be used for shopping or dining at participating stores and restaurants in Siam Center and Siam Discovery, subject to the terms stated on the card.
3. One SIAM GIFT CARD can be used for only 1 shopping or dining receipt.
4. The SIAM GIFT CARD is valid until 30 Apr 69 only.
5. Receipts already used to redeem this promotion cannot be used to redeem other mall promotions.
6. If the receipt owner (as named on the receipt) wishes to authorize another person to act on their behalf, or wishes to transfer the right to another person, the representative or assignee must present a copy of the receipt owner’s ID card signed by the receipt owner, clearly stating authorization for such action, to the staff at the Information Counter (a representative may act on behalf of no more than 2 rights per person per day).
7. Excluded from the promotion: tax invoices/receipts issued in a company name, tax invoices/receipts without a receipt number, electronic tax invoices/receipts, copied receipts, splitting 1 item purchase into more than 1 receipt, receipts showing a time before the shopping center opens, combining receipts between shopping centers, purchasing gift vouchers or prepaid cards of various stores, receipts from purchases of products and services through online channels, and purchases on ONESIAM SUPERAPP, including receipts showing payment through various FOOD DELIVERY PLATFORM services, receipts with partial or full payment by CREDIT NOTE / ACCOUNT CREDIT / PAYMENT ON CREDIT / STORE CREDIT, advance payment for products, partial or full product payment from exchanges or returns, product reservation receipts, incomplete payment and all types of product deposits (DEPOSIT PAYMENT), purchases for trade / wholesale / commercial resale, utility payments or purchases for investment such as water bills, electricity bills, mobile phone bills, investment units, life insurance, purchases of mobile top-up cards, and currency exchange (EXCHANGE).
8. Excluded from the promotion: copied receipts, purchasing 1 item and splitting the receipt into more than 1 receipt.
9. Redemption of the SIAM GIFT CARD is reserved only for those who present complete documents, including qualifying receipts from participating stores, the redeemer’s national ID card, credit card, and credit card sales slip (in case of credit card payment).
10. Rights are reserved for customers who come to redeem in person only. If unable to come in person, an authorization letter is required solely for receiving the complimentary gift. An authorized representative may receive no more than 2 rights per person per day.
11. Each person may queue to redeem only 1 right at a time. Complimentary gifts will be distributed only to those whose receipts meet the specified conditions, until all rights are fully claimed.
12. In the case of handwritten receipts, the customer’s name must be clearly specified, and the shopping center reserves the right to make and retain a photocopy.
13. The shopping center is not responsible for errors resulting from communication by sales staff of tenant stores.
14. Store owners and sales staff of tenant stores who purchase products in their own stores are not eligible to participate in this sales promotion. The company reserves the right to reclaim the SIAM GIFT CARD or cancel the SIAM GIFT CARD redemption in all cases if it is found to violate the specified conditions.
15. If it is found that the redeemer is not the owner of the receipt used for redemption or not the actual purchaser, the shopping center reserves the right to cancel the complimentary gift.
16. Complimentary gifts cannot be changed and/or exchanged for cash and/or other complimentary gifts.
17. Those who have already redeemed a complimentary gift from this promotion cannot request any change to the complimentary gift in any case.
18. The company reserves the right to change complimentary gifts/benefits and conditions without prior notice. In case of dispute, the company’s decision shall be final and binding.
19. For more information, call 02-111-6161 or email contact@onesiam.com
Exclusive Privileges for #BIFW2026 Ticket Holders
1 October 2026 - 4 October 2026 Exclusive privileges for SIAM CENTER BIFW 2026 fashion show ticket holders







