Money went missing between our bank and Avatrade

We made a debit card deposit directly on the Avatrade site. Money went from Nedbank debit card and beneficiary Avatrade. Phone and mailed them many times since 28 January. Avatrade can not find the money in their account, they claim. Bank confirmed once again it went throught. We cant get to speak or email the accounts department at Avatrade. Avatrade shifts the goal post every time with new requests. We just dont have any progress with this company!