NON PAYMENT SHENANIGANS

Beginning of this month our line was suspended due to non payment, how that is possible I have no idea to my knowledge we only pay the line rental fee which is on time EVERY MONTH... When contacting the the very helpful very friendly staff in your accounts department they told me that it was because we have an outstanding amount of R500 and something and the amount due is R300 and something which I gladly payed that day the rest of that amount is only due end of July. Why the amount was so high I absolutely have no idea. Fast forward 2 weeks in and my line has been suspended AGAIN!!! Spoke to one of the agents, AGAIN I was told there is an outstanding amount of R158.27 for what I don't know so of course because no one can give me a clear reason why this is so I paid it again. I would just really like to know Telkom, why wasn't this extra amount that was so urgently due from the beginning of the month not mentioned to me when I asked about the amount that I needed to pay and WHY, after 2 weeks of a payment already made, I am told that my line is suspended due to a non payment?? And lastly WHY is my account so high when I am only supposed to be paying the minimums which IS ALWAYS PAID ON TIME