Deposit still not refunded to client/customer

On 25 January I closed my account with Protea Metering and the document that I signed stated that after three weeks 21 days I will receive my deposit. When I wake up this morning I receive a message from protea metering stating that I owe an amount of R547 for an account that I don't even know that was not registered in my name. After visiting Protea Metering at their offices and after speaking to Raymond whom I believe is the accounts manager he promised that he would call me once the EFT is done and he would send me proof or email me prove rather that the EFT was paid out as they owe me my deposit from after cancelling my account with them. Any of the promises he made were never fulfilled and I still haven't received my deposit... On the agreement upon requesting your deposit to be refunded to you it states that it will take about 3 weeks to be paid out its over a month now I still haven't received my dues. Is this seen as breach of an agreement?