MTN Contract upgrade and not receiving all the cellphone accesosries

I upgraded my MTN contract on 7 September 2021. However the phone did not come with all the accessories when the phone arrived on 10 September 2021. I ordered a Hisense Infinity H50, which is meant to come with a Hisense gift Box (Sound bar, Phone holder and phone ring). When I first called in on Friday on 083 135, I was transferred to Mondi Online Contracts where I was informed that the second delivery should arrive in a week. On 15 September 2021 I called in again on 083 135 and they transferred me to online contracts where I was informed that my query was logged on Monday 13 September 2021. When I called in on Friday 17 September 2021 still on the same number 083 135, they managed to transfer me to Online Applications and I was informed that the reason why I haven't received my the Hisense Gift Box was because they did not obtain my consent regarding sharing my information with a third party. I gave them consent on Friday 17 September 2021 and I was expecting delivery to be today 20 September as informed by the consultant. When I called in today 20 September 2021, on 083 135, I was informed that they cannot transfer me to the online applications yet I have calling the same number for 3 days now. I want to cancel the upgrade, and my contract to end in November as it is meant to be, No one has helped me yet I have spoken to numerous consultants. Here are some of my reference numbers I received during my calls: *** and ***. I don't know where to return the phone as no-one has been able to give me the correct contact details or a record of the 3 calls I have previously made.

May someone contact me urgently regarding this issue