Upgraded but NO PHONE

I have upgraded my contract on the 23rd of Aug. a Time was arranged between 10am -12pm for the following 3 to 7 working days. The delivery company came 16:30 that afternoon whereas my husband was no longer at work and we were at home already. We have phoned MTN after this incident several times to even cancel the contract seen as I still don't have a phone after a month ago that I have upgraded. This is unacceptable and nobody is phoning me back regarding this issue. This is ridiculous