Request to cancel contract with Vodacom

Recently I received an sms from Vodacom that I was due for an upgrade.I made contact with the upgrades team and spoke to Ntwanano. I advised her I was interested to continue with the Iphone 6s (Rose Gold) which required no pay in. Since last week Wednesday I have not been able to get a hold of upgrades team and lodged a complaint through HelloPeter still with no response from Vodacom. On Friday, 18th March I visited the Vodacom branch and stayed over two hours there trying to get a hold of the Upgrades team - still no success.The Vodacom Consultant that was assisting me (Badi) then advised she would escalate matter and revert to me by 21st March - I still have not heard from her.This morning, I called the Upgrades team again and was told I would need to pay in for the Iphone 6s - which was not what I was advised.I believe I am putting in ridiculous effort to continue with Vodacom and have lost interest in upgrading. As a red advantage customer I do believe I can get better service elsewhere, given amount I spend with Vodacom and am now looking at an option to port my contract to another provider please? Please can one of your team members get in touch with me to cancel.