That is their answer:
I don't know if you have a understanding of Workswell Bikes. We are mainly providing OEM service for mainstream renowned brands in the market. We have high reputation in the market for premium quality. In fact, we don't accept any orders from individuals, but Sarah accept your order, and urge the production department to speed up your order every signal day, and finally make it possible to ship out. Regarding the wall thickness of the steer tube, actually it doesn't has any quality problem, all the products must undergo strict testing before put into production. BUT, since you insist that you don't accept the fork, and we are willing to send you a new fork. Now, you request full refund and want to return the completes set frames. No problem, we respect your decision. BUT, please note that, we only responsible for the returning cost of your so-called defect fork, which means, you have to bear the returning shipping cost of the frame and seatpost and other accessories. Please arrange returning all he parts and update the tracking number in paypal, after we receive the goods, we will refund the money to you, thanks! And from today on, I will issue a note in the whole company, starting from today, we refuse to accept any individual orders, thanks!!
Tbh I am pretty annoyed with them at this point. The fact that they still don't admit that the fork has a problem is a joke. They are talking about high quality but send out this shit.