Worse customer treatment

Worst experience ever. Edgar's is a ****. I have been trying to assist my Grandmother to close her account and we are not being assisted. We were told she must call the call centre herself as there are questions they need. She is old and sick but we tried and when she was done talking we were told she owes just above R45. Mind you we had settled everything the day before. The consultant could hear that my Grandmother is sick so she said we can pay then send an email, I went to the store same day and paid more than the required amount. I sent the email but 2 months later she still gets calls and smses telling her she is behind in payment. So what is Edgar's charging her for? She cancelled every other club benefits yet the amount keeps rising. They are failing to assist us but they are too quick to send smses. I am very disappointed.