I just registered an account on btctree,
my alipay account is an email address, and it's in such form:
xxx.yyy@gmail.comit seems that your system do not take it as a valid email address!
please fix it, I want to withdraw my money!
Hello, thank you for your reminder.
we had a too strict email type check function,
xxx.yyy@gmail.com was forbidden by it.
however it has been fixed, you could try again now.
if you still have any problem, you could also contact us via
https://www.btctree.com/contact.php we process many Alipay translations everyday with great speed. please do not worry

thank you