Edgards and RMC

Hello peter I have an Edgards account and in July 2017 I paid it off since I was leaving for overseas for 7 months. Howeveer, last months when I went to FNB to increase my credit card limit and I was told to contact TransUnion because I was not keeping up with my payments. It was a complete shock to me because I have made sure that my credit cards are paid on time and the only account I have is with Edgards, and it was paid off in July 2017. When I contacted Transunion I was told I have not paid Edgars R184 and my name was handed over to the lawyers in March 2017. Obviously, I was not aware of all of this since I was overseas and I wasn't receiving letters or calls at that time. I told the lady from Transunion that I didn't owe Edgards anything since I had paid off my account but she told me to contact Edgards regarding this matter. When I called Edgards I was told I had subscription/contract for some cellphone content from RMC and I was charged through my Edgards account and I was shocked to hear that because I have never signed up for such and I have never received anything from RMC. I called RMC to reverse all the charges and clear my name with Transunion several times but my attempts have not been fruitful. I am always told that someone form Admin would call in 48 hours but that has never happen. I need your help urgently, I cant move on with my life or open new accounts because of this thing sticking on my credit record. I have maintained a good credit record over year and I cant believe it has been ruined by this ****.