BAD USELESS SERVICE FROM VOADACOM

i called vodacom to do a premature cancellation on my vodacom data card. they sent me a quote. i paid this amount and emailed the info required to retention cancellations on 28th nov 2017. on 30th i called retentions cancellations and your consultant said that not yet cancelled and will send to her snanager to do immediately. i asked that they send a confirmation email to this effect, of which they did NOT do. today 4th dec i called retentions cancellations and they said not cancelled and that i will have to redo. this has happened to me last year DEC 2016, when i cancelled and paid up my contract prior to going overseas. it was a headache. it looks like a similar situation again and i feel that your retentions cancellations department is rather useless. i am leaving for overseas in next few days and require to sort ASAP