EDCON threaten and are UNREACHABLE! Untrushworthy!

I have an Edgars account that is closed.The only payment I make per month is R100 & to cover my legal plan of R59 p/m and my Life Membership fee of R44 and charges.I have a number of times received money back as I have paid too much.What really upsets me is that my statement only arrives via email on the 10th of the following month AFTER payment is made.You can imagine my horror now when I open my statement & see that I am in arrears of then R200 & it is due to Edgars having added a Cel C Subscription of R25 onto my account over the last few months without me asking for it.I don't even have a Cell C acc.They've charged me arrears for something THEY HAVE ADDED ON I feel this is extremely shady & I want action taken to remedy this situation.I have an EXCELLENT credit record & I have been a faithful Edgars customer for 10 years.Chantelle Usher emailed a letter through to me today to say they are now asking for R233.37?I immediately contacted the Edcon Collections Department, which was the no. provided by Chantelle & they say they don't have a direct number for her?I have emailed and no response.Edcon are quick to threaten with a bad credit record when they are at fault & don't answer!