TELKOM SERVICE SHOCKING NO STOCK

I have had a Telkom landline for about 15 years and the number is *** now I have a problem wth the phone it says only emergency calls only no SIM card, the phone has a SIM card, I took the phone to killarney branch, he had a look at the phone, checked it but found no problems with the instrument and asked me to go to the Rosebank branch where they say a pin is broken and there is no pin broken, the technician was just too lazy to look at the phone, I took the phone to them again and they did a sim swap, in fact I been to the Rosebank branch about 5 times now, after **** the sim swap the phone still gives you the same message, I asked them to get me a new phone and they have no stock of these phones, Telkom now must tell me what is the way forward, I am 72 years old and I have to run around like this and still pay them for what I don’t use this has been going on for two months now, my cellular number is *** and would like Telkom to call me to solve this problems as she on as possible