Capitec Blocked My Account

Capitec Blocked My Account as we run a business that sells bitcoin. We had a client try scan is by saying he never got his bitcoin and wants a refund.but his bitcoin was verified on the blockchain insisted he gets a refund. On fact his trying to **** us by keeping his bitcoin and getting his money back. I need this sorted out as soon as possible as Capitec is treating me as if I am the ********* and in the past 2 months we have had over 100 000 rand in transactions now our account is blocked due to one single person trying to **** us. I need this sorted out as soon as possible. I can't go with out my account don't even have fuel to get to the branch again. Hurry up Capitec and I will definitely not recommend anyone running a business to use them as they cover up for ********