I have a contract for 3 years with Telkom

I have a contract for 3 years with Telkom. My contract is now ending in 1 month. For the last few months my contract is suspended 3 times already. I pay my laptop my self and my phone go off via debit order. Now my debit order is not showing on their side and I am suspended again. How is it my fault for something I can't help. Everything is fine on my side, but I have to sit with their problem. When I call head office they give me this attitude and say I should wait a few days.