EDGARS FAIL TO UNDERSTAND THAT I OWE THEM NOTHING

My name is Margaretha Elizabeth Ferreira. Account number ***. My Edgars card no is. ***. The acccount is paid up in full and I haven't purchased anything lately, However, I received an sms from Hollard, informing me that I probably have a policy for debt cover since 2002. Since I have no outstanding debt, I would like to find out what the policy covers and if a copy of the policy with a reference number can by supp**** to me. I have tried frequently in the last few months to explain this to the store at the Grove, Pretoria and that I owe Edgars nothing, but despite assurances by the staff, the accounts keep on coming every month. It is clear to me that the staff responsible for the accounts do not understand my problem and are incapable of solving it. It also does not help phoning