Comedy of errors

So I upgraded with Telkom's third party named Sell Direct, firstly I am sent the incorrect phone. I notify both telkom and the thrid party that i have received the incorrect phone and that they should not activate the new sim as it is not compatible with my new phone. the very next day I wake up to no signal on my phone, I then receive a call to be told that they want to collect the new phone, which i cant hand over because i will be without a phone until they receve stock of the phone i ordered. that was 2 weeks ago I still havent gotten what i asked for, nor have I gotten what i was promised by sell direct. cant reach sell direct and telkom cant tell me when this matter will be resolved. If i do not received feedback by tomorrow C.O.B, i will return the product I got and want both my contracts with telkom cancelled.