They suggested using PayPal and that's exactly what i used .....No, there's no reason to shutdown the cash shop since you can still buy from the CS with in-game exchange. But they definitely should have pulled the affected payment methods from the top up page. Also an actual announcement, in ALL of the languages would have been nice. Since as far as I can tell the only official information we've gotten was in German from the German CM.
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Still no official announcement about either the top-up problems or the loan system, and whether the two are related. Awesome.