Vodacom cancellation

I ordered an I phone 8 online from Vodacom. Received it on 3rd July 2018 delivery by RAM (courier company). I had specifically requested to port & use my current cellphone number however the device was delivered with a new cellphone number. I requested cancellation of the contract immediately & the device was collected by the same courier company RAM on the 13th July 2018. On the 14th August 2018 RAM delivered the same device back. After several calls made to Vodacom to enquire about the second delivery I was told that I must unlock the I-cloud & resend the device back which I did. Several call were made to Vodacom to request RAM to collect the device & the request was only action in October after speaking to over 7 consultants at Vodacom. The device was collected on the 30th October 2018. The receipt of the device was confirmed as received by Shane at Vodacom on the 1st of November 2018. Can confirm this on this link https://www.ram.co.za/Tracking using the waybill code: COL ********** 6

I then requested cancellation and was told that the request will be action with 14 business day. To this day my contract is not cancelled yet. Every time I follow up I get told that someone will call me or they will action the request within a day.

I really fed up with this.