لا يمكن الوصول إلى خدمة العملاء ، الحساب مغلق

can’t reach customer service, account is blocked

I used Mt5 and broker is Helius Capital, now I wanted to withdraw money and they asked for tax, they said will send tax statements in 1-7working days via Hongkong tax department, now I can’t reach customer service, account is blocked, please help