********* and unacceptable service

My upgrade was due in Apr, I couldn't find an affordable one on Vodacom so phoned Cancellations to cancel my contract. They put me through to Retentions who convinced me to go for a cheaper option and they'd throw in 500mg of data. I was happy with that and accepted a new contract. Phone was deliv on 17/06/2015. The R350.00 airtime that comes with the phone was used up on data as the 500mg of data wasn't delivered. I bought 500mg data on 26 Jun which was to expire on 27 July. All the data disappeared on 30th June when my new contract 'kicked in' even though this was bought outside of my prev contract. Today, 16 July, I STILL haven't received my 500mg data! A Nicole from Vodacom phoned me on 13 July from number *** and promised to sort it out and phone me back within an hour. Still waiting. I then phoned Retentions ***, spoke to Mandla who said I must call After Sales who would cancel my contract 'like now'. Phoned them, ***, spoke to Thatho who said she has no access to contract info and to call Upgrades ***. Phoned, spoke to Patricia who said I must call Retentions! Called, spoke to Precious who said she couldn't hear me & ended the call! CANCEL MY CONTRACT!