Poor pathetic service from Vumatel fibre

I find Vumatel services very very poor i mean I paid yesterday for my WiFi to be opened but I was advised that I was not suppose to use thag voucher number anymore. When i called I spoke to two agent Kgomotso Mo***eng and Thulisile respectively but no when now I do a follow up with them regarding email of proof of payment they are both not responding. I am very angry as I was not advised that I was suppose to get a new number now I am stuck I made payment and ny services are not opened then after 28 days I will be expected to pay. Is this service we get as member then today I call agent was very rude and quick to dismiss me not 3ven providing me with services that with query is still within Tat