MTN Delivery

For over a week, after my contract upgrade, i have still NOT received my new Phone. I get the email and SMS saying my phone will be delivered on the 23rd May, I call them and say i do not have any fingerprints, and would need another way of proof, to which i was told it could be done VIA an OTP, with a proof of residence and a copy of my id, as well as the original ID, BUT they will need to get approval from MTN. I call MTN and after a 30 min long pillar to post, it was agreed. DSV then reschedule the re-delivery, of which i receive an SMS confirming delivery on the 26th May. NO DELIVERY! So i call on the 29th May asking why no delivery, and the pillar to post between DSV and MTN starts again, and still no resolution! I gave the ultimatum, if this is NOT resolved today, then i will be canceling my MTN contract! (But i believe this may also take months????)

Where to from here?