Telkom Prepaid Line

I am highly disappointed with the service received from Telkom. I am an owner of a prepaid line and pay a yearly fee of just over R100. In January 2019 my line was disconnected without prior warning. After loading prepaid airtime in an amount just over R150 there still was no service. Every time i tried calling it said "your waya waya service has been suspended". I reliased that an amount of R100 was deducted from account and still the service was inactive. I went to your Menlyn branch yesterday to query the issue and i was told that Telkom is doing away with prepaid lines and all the money i had loaded will be LOST. Can someone from Telkom please contact me with regards to the following: 1) why was there no notification/warning of my account being suspended prior to suspension? 2) why was an amount of R100 deducted from my balance if i can no longer use your prepaid service? 3) there is a balance of R52.00 on my account of which i was told will be forfeited.