Give the correct form of the words: If you have any _________ about the TV set you bought, take it back to the store (COMPLAIN)

If you have any __complaint(s)_______ about the TV set you bought, take it back to the store.

Dịch: Nếu bạn có bất kỳ phàn nàn nào về TV đã mua, hãy mang nó trở lại cửa hàng.