Incorrect billing on my Edgars account

I currently have an issue getting assistance with the double payment on my account. I called Edgars on Saturday the 4th of July. the first lady i spoke to put me on hold and after a while the call dropped. I called again and the lady was able to pick up the cellphone insurance billing which was incorrect and advised me she has done a journal which will take about 48 hours and this should resolve the issue. I now received my statement where i'm being charged part month insurance and the full amount. I can't seem to get assistance or this part month to be reversed. Last month i paid the full balance on my Edgars account meaning i should only have the 2 insurance amounts, service fee and interest however i 2 additional amounts of part month insurance. I tried calling again on the 8th but it takes a while to go through that i ended up dropping the call. I'm not sure who to speak to to get this resolved.