They changed my account type to draw interest

I went Christmas shopping at Edgars around 19 December. I tried to put the purchase through the account, they told me my account was closed due to inactivity, and I must open a new account. They said it would be fast, it took a half hour (not fast in my books). They did it telephonically, my mistake for allowing this. The representative asked whether I want a 6 or a 12 month account. Knowing that the 12 month account charges interest, and since the old account was 6 months, I asked for the 6 month account. I got my card and decided to put the purchase on the account. After struggling to get the account online so I can see what's going on with it, I find out it was opened as a 12 month account, with interest, which I did not want, and they did not inform me that they made it a 12 month interest account. Also, a new feature that was not there on my old account is an account protection plan at charging me R6 per month. I went to Edgars and tried to correct their error, they say they can't help me.<br> <br> I closed the account because it was the only option I was left with. I'm sure my credit rating now suffers because of their scheming to charge me interest.