Nope. I'm still having issues getting foreign credit cards to work through the system, but that's it.

We contacted WeChat support re: getting my CSP situated on the account. They say they respond within 24 hours, and they mean it. Each time they write back around the 23:55 mark. The first message they wrote to tell us we had not included the account number, the second message they wrote to tell us that our question had been referred to a specialist, and the third message the specialist wrote to tell us our account has no problems.

... still can't make any purchases other than a mobile top-up, though.

Has anyone used a foreign credit card to make purchases of train or plane tickets through WeChat?