Bad Service, no feedback

The first week of july i phoned mtn to upgrade my contract. Mtn send me an sms stating that i will not receive my phone on 07.07.2017 but on 11.07.2017. On 11.07.2017 when i phoned them somebody told me that the contract has not even yet been approved. The contract has first been approved on 19.07.2017. I had to once again phone and ask when the phone will be delivered and Felicia told me that the phone has not been send yet to the warehouse. On 20.07.2017 when i phoned Mtn again this guy (good service from him) told me that the phone still has not been send to the warehouse and he made sure that it will be send and then on 21.07.2017 i received my phone. When i opened the box the handset colour was black and not the intended gold that i asked for. The phone cover that are supposed to be free were also not in the box. I phoned mtn once again and they told me that somebody will come back to me (this person who finalised the contract would have phoned me back on all these occassions that i phoned) but until today nobody even attempted to contact me. this is surely pathetic service and if my complaint is not dealt with in 14 days, i will have to report you to the ombudsman. This email I have even send to ********** on 28 July 2017 but until today nobody has contacted me to give me an explanation or to send me my FREE PHONE COVER.