Worst experience ever - zero customer service

This place has the worst customer service. It's actually non-existent. I purchased an item, upon receiving it, I realised that I had made an error since it was not in line with what I envisioned. I tried to return it from day 1 since there's a 7 day return policy. There's no response from them after I paid the courier fee for them to fetch it so that they can refund my money. I chased them for 7 days and they never reply. Please do not buy anything from them, steer clear at all costs. Rather pay more elsewhere, where you can trust the seller.