DISGUSTING SERVICE!

I am highly frustrated and disappointed with MTN. I ordered a phone last week online, a sales consultant contacted me shortly after, I work very long hours, so I do almost everything online. I ordered an iPhone 14 Pro 256GB, GOLD in color. The sales consultant confirmed ALL the details. DSV arrived yesterday 15/06, I went out of the office, gave the necessary documents, signed, collected, and went back inside. As soon as I opened the package, to my dismay…there was an iPhone 14 Pro but 128GB and deep purple in color. MTN had sent me the wrong phone. I got onto my current phone immediately and attempted to contact an MTN consultant, took me 15 min to get through to one. After that being told I had to call a different number, so I did, the lady then proceeded to explain I have to do the cancellation, get a reference number, go in and cancel my order AND I still need to pay for DSV’s delivery fee??????? What sort of nonsense is that!? MTN is in breach of contract because they delivered the WRONG phone and now, I need to take off work to sort this out AND then still order a new one WITHIN 7 days that is other I will incur penalty fees! I am furious! I will definitely be contacting my lawyer in regard to this if they do not sort this out. I feel this is a very unfair way of treating their customers, especially the ones that have been supporting them for many years. I am beyond disappointed in the service and how I am not held responsible to sort this out from my side even though I am not the one at fault.