Under Article 10 of Kuwait's Consumer Protection Law (Law No. 39 of 2014), you have 14 days from the date you receive a product to exchange it or return it for a refund. This is your baseline right as a consumer, and no store policy can legally take this right away from you.
It's worth noting that the National Consumer Protection Committee has the authority to set shorter periods for certain products depending on their nature — for example, perishable goods — so always check whether a specific category applies to your purchase. However, for most everyday goods, the 14-day window stands.
If a shop refuses your return or exchange within this period without a valid legal reason, you can file a complaint with the Ministry of Commerce and Industry's National Consumer Protection Committee. Keep your receipt and any packaging as evidence to support your claim.
This is general legal information, not legal advice. For advice on your specific situation, consult a lawyer licensed in Kuwait.