Payed and my account was cancelled

i was an existing client on the company SA warrantees and i had to change my bank account number and i gave them the new account number but they did not deduct and the second month they did not deduct then i gave them a call and gave them my account again and i was told it was up to date but the third month was not deducted and i gave them another call then they gave me their bank account number, which i successfully paid for the three months. Then i decided to check if they received my payment which i was told my account was cancelled after i just made the payment. Then they told me i must sent them the prove of payment again and they gonna pay back the money which i still never received. <br> The main problem is that when i call them they keep transferring me to other consultants until my airtime runs out or they give me contacts to contact which they tell me they don't deal with the kind of issue so the give me other contacts. I'm running in circles with this people and i am loosing airtime on the process.<br> <br> Please please HELP.