Disgusting homechoice service

I'm so frustrated with the service of the call centre agents. I had an account about a year ago with homechoice and I paid off all my debt,however I haven't bought anything since then. I recently found out through clearscore that I owe R196 after home choice and when I called to find out what's it was for I was told it's interest because the account was still open. My question was, why did no one call me to settle this amount or explain that of I dont close my account the interest would just increase. I then requested for a settlement letter and settled the account. When I called back in to request a paid up letter, I was told I still owe R7. I don't understand really, these people are now giving me a hard time to receive the paid up letter