Very bad service that I didn’t even ask for

I have a data contract with them which is coming to an end soon, I called that am putting my notice and am not interested with proceeding with contract.. I didn’t have any issues with them honestly.. now I get a call to upgrade and the lady from upgrade who called me is Samantha. She was convincing me to take an airtime contract as an upgrade but I said I am not sure cause I need to fix my finances, I only told her to call me back, today she calls me, was not even sure of my name she ended up saying “can I speak to the contract holder, I asked her who is the contract holder, that is only when she bothered checking my name. After she was busy asking me how the contract is so far, I use up all my data, but am like no I don’t use all my data, I get 50gig from vodacom every month that I dont finish cause my balance is 103gig right now… girl didn’t even wana listen… what annoyed me and the reason for my complaint is when I asked why she calling cause I was just not happy in the manner in which she was speaking to me from the very beginning was when she said I called u to assist you with your vodacom number rudely and she hanged up even before I asked her assist me with what, do I need assist? I don’t know this things… but if they could listen to that call lady was rude, had an attitude even if I were to renew the contract or upgrade definitely that call was going to make me cancel the upgrade instantly.. Samantha u are super rude for a person who works with people, if I were vodacom I would take u and make u work at the back not with people.