they have client support QQ if you switch to Chinese version, you can try that

(support) 客服① QQ: 930670188
客服② QQ: 930625188
客服③ QQ: 417677728
客服④ QQ: 1091544692
客服⑤ QQ: 2795309276
客服⑥ QQ: 2753561485

I had issues withdraw, and got fixed very soon.