Vodacom- Bad Customer Service -Yasvir Singh - Phone cut with no evidence

I had a call from a gentleman by the name from Vodacom by the name of Yavir Singh in Vodacom Lega l Department, firstly he was rude and obnoxious and spoke over me. As i requested an explanation why he was threatening to cut my phone. He then went on to saying that the reason why he is going to cut my phone is because they found an arrears amount from - his words prior 2017, of which he could give me no proof of and that he could not give me a number or an email of his superior to take this up with them on how badly Yasvir spoke to me and would not give any supporting information or evidence.