I added Y200 to my phone this morning (100 x 2).

Tencent billed me for Y200 (actually 199).

Only Y100 posted.

I sent Tencent a message about this at 2p, and expect a reply at 155p tomorrow.

I'll post here again with the resolution, but the real lesson here is that it's a good idea to top up before the first day of the month (regardless of your top up method) because with those 600 million phones, a lot payments are made on the first day of the month.