Bad Customer support.
I tried to order a Product from them to test their delivery time and to start product testing for my shop. 3 Days after I paid, I got a notification that I need to add my phone number for the delivery to be processed. After sending it to them, 3 times on 3 different channels and after opening a ticket, the issue still wasn't resolved. I can't imagine the Chaos this would've caused if I decided to add the product prematurely without testing. Customer support doesn't seem to understand even a fracture of English and completely ignores the "expected result" part of the ticket.