I beg to differ, sir! Not to accuse you of being a bovine scatologist, but my experience was different from yours.
I set the account up on my own, and had a Chinese friend help me with inputting some information such as my address. I was able to use the website for COD, but I have yet to link my account to alipay. Also, I have yet to receive my unicycle. I guess the vendor didn't want to do a COD to a new customer. I will see if it comes in the next few days, otherwise I will wait till I link my account.