Terrible

I really don't understand how vodacom system is working i get automated calls from vodacom accounts claiming my account is in arrears of R376.20 i dont know how as the account was paid on the 29th of January,what makes me angry is i tried calling to find out whats going on am told they will fix it coz the account is paid. I guess its one of the reasons they running away from processing my contract cancellation by claiming my account is in arrears. Even the consultants when i try to explain and tell them POP was sent they so rude. What is going on with vodacom and its systems.