Billing / Upgrade / all around Issue

I Did my Online upgrade on the 24th of February - thinking this would be much more convienient. To my shock this wasnt. was the start of more troubles. received the phone two days later - having to go in to vodacom and let them set up the phone as it was no set up and sim card swop was not done, then when i phoned on Saturday the 31st of January to get the LTE activated, i found out that the contract was an open contract, i then asked if the contract could be changed - i was told the procedure is that they collect the phone and reverse the upgrade. i was told the reversal was done (31st of January). when i had a look on the website (daily) this was not the case. i then phoned again - being transferred from one end to the other - again asking for the upgrade to be reversed - again being confirmed this was done (4 March). Today i was billed for the Contract which to date i have not used, and phone also no longer with me - i call again to confirm what is the store - Upgrade STILL not reversed? i find this really ridiculous to be charged for a service that is certainly not being given. i honestly feel that for Vodacom being a leading network i would expect better service.***