Edgars
12 month plan charged instead of 6 months

I recently opened an account at Edgar's for a 6 months plan. I opened my statement today and they are charging for some purchase 6 months and some 12 months with interest. I phoned a Edgar's consultant today and he told me there's no more 6 months and have only 12 months plan now. I find it very unfair that no one informed me of this and would like the interest paid back into my account.