Unsatisfied with Jet stores

I had a Jet account years ago, paid it up and told them to close the account. About a year ago, went back to Jet to open a new account. The lady I spoke to over the phone told me that I still have a active account, its just frozen, she will activate it again for me. May month I got retrenched, went to Jet to have my balance paid up with the insurance that comes with the account. Turns out when they froze the account years ago they, the insurance got canceled, now they activated the account for me, but not the insurance. So now I'm jobless and stuck with that debt. Beware of that people. I feel that was very wrong from their side.