A certain market stipulates that the buyer may not get his money back if he returns the goods; is it permissible to buy from them for that amount?

Question:
He says: Honorable Shaykh, may Allah grant you success. One of the clothing markets, if you buy goods from them and then want to return them, they do not give back the money, but they give you an invoice for the amount valid for six months. He says: One of the clothing markets, if you buy goods from them and then want to return them, they do not give back the money, but they give you an invoice for the amount valid for six months, such that I can only buy with it from this market. Is this practice permissible?

Answer:
This is not permissible because they delay your right and do not give it to you except on the condition that you buy from them. This is consuming wealth unjustly, so it is not permissible. If they accept the cancellation of the sale and the return of the item, they give you your money. They give you your money. And if you allow it and say, “I will delay taking it for a period willingly, not under compulsion,” there is no harm in that. Yes.