Account Suspension via Spend limit that they increased out informing me

I log a dispute of telkom on my contract before they relies a statement, Log this in 20 Jul 2021 now is september my statement is fault and don't seem to get help when I called. I went as far as sending them emails everytime now when I call them the tell me to wait and after time waiting the phone get dropped. They fail to tell me what happening with my acount and their service on call centre site is very bad as I in a cycle of 3 months without getting any assistance. I not sure what to do now or how to get this resolve please if you have a way to go about this comment.