Light in the Box.com reeks like a ****

A very bad first - and last - experience with the online website of LightintheBox.com. On August 15th I ordered some bedside lights and paid with my Visa credit card. When they arrived about a month later, the wiring was incomplete on one light and both casings had no space through which to attach a cord. When I complained via email, first reaction was: "this product falls under a special category and it cannot be returned, as our supplier does not accept returns for this type of item." Which was a lie: their website showed as such. So I emailed them again, saying I wasn't accepting that. Then they offered to replace the goods, which I declined; I just wanted to return them and get a refund, as the website said was easy to process. Some more emails later, LightintheBox all of a sudden said they would refund the purchase price, but not the shipping costs, plus I could even keep the fault goods! I would get a credit balance on my LightintheBox account, which I could use for further purchases, or choose to refund the amount on my own credit card. Okay, I'm not totally happy, but I accepted their offer. But then, when I try to withdraw my credit to deposit on my credit card, as their website says is easy to do, the withdraw button doesn't work. Trying to contact customer Service is impossible: you first have to install a LightintheBox app via a link and QR code. both of which don't work, either. A complaint about this via email stays unanswered. So apparently there is no way to deposit my credit onto my own credit card account and there is no way to contact Customer Service. It reeks to me as one big ****.