vodacom worst cell phone network

there was a lady that was bugging me to renew my kids 2 contracts after her 5 call I decided to renew it because she said I will be saving money and its the same as what they have now so the 1/4/19 it was activated and my children phoned me and told me that they don't have any data. after numerous calls trying to speak to some one and hanging on to the phone for 20 min at a time I eventually got hold of Nomthandazo she phoned me back once and that was it then I spoke to Nomfundu also didn't phone back and just said hold for the cancelation department this guy just said I will escalate it and put the phone down this is the worst service I received ever I would like to cancel the contract and would like someone to call me but don't think that will happen