CellC - Quick to sell products / Slow to asisst (IF THEY EVER DO)

I recently purchased the Samsung Galaxy S21+ cellphone over CellC Direct as I wanted to avoid going into a busy mall with lots of foot traffic due to the pandemic.

I knew that there was a promotion where you get Galaxy Earbuds and a Galaxy Tag with every purchase. I asked the consultant at the call center a few times whether I get this and he clearly said no. I proceeded to sign up a contract in spite of this as I have been with CellC religiously since 2002.

I got my phone, times passes on. I had to go into CellC to purchase a charger as the S21+ doesn't come with any additonals. The consultant in store asks me whether I've recieved my free gift - turns out I qualified for this all along - this was in the last week of January 2021. I needed an invoice with an IMEI number and the store said they cannot print it as I did an online delivery and I had to call the callcentre on Monday to get an invoice. I have been struggling with CellC since the first working day of February 2021. The call center agents keep transferring me from department to department. Nobody is able to send me a copy of an invoice with an IMEI number and even though I was told a supervisor would email me a copy within 48 hours, still nothing recieved. Eventually I sent a copy of my contract agreement to Samsung and app**** for my gifts which they confirmed were being delivered, only to tell me 2 weeks later that the document I submitted is not efficient.

Keep in mind the deadline to apply was end February and everyone has been messing me about and to this day I've not been helped or contacted or gotten my gift.

I am appalled at (1) Being sold a product under false pretenses i.e Told me I don't qualify - listen to the recordings Cell C! (2) Not being able to get a copy of an invoice which contract I am paying R1000 p/m and they cannot even send me a piece of paper.

I don't know where to turn anymore. Can anyone help? I will not leave this and will escalate it to the highest powers however necessary.