Unable to get assistance from MTN

I really require assistance. I took the MTN black friday deal for R299 for 100 anytime gb. I app**** online. There are 3 issues I have: 1. The device I received is not the same as the one advertised. I was sent by your twitter account handler to query in store. The store cant assist. Who can? 2. I am unable to use the app to check my balances because it sends a one time pin and i cant receive one on the device I received. How will I be able to check balances? 3. I queried my usage and the store also advised me that the allocation I received is incorrect and I didnt received the promo data as well. Who is able to check and fix this? I need to be able to check my balance.

I am unable call you contact centre on 083135 when I select option 0 for a service consultant it that the option is invalid. The store cant assist with anything because the deal was done online.

I need help.