Unhappy Cell c customer

I app**** for a laptop contract on the 7th September 2024 after receiving an sms with a special, I called in and accepted the offer and they told me it was approved and I will receive the delivery during that following week.. Today is the 20/9/24, I have called in over 6 times for feedback as I still have not received it.. Each and every time it's a new issue.. One person told me to wait till the end of the week for an sms to see if it was approved.. I'm extremely unhappy with this service as I'm a cell c customer for many years now.. I have been to the store and asked them to check for me, they say there's nothing showing on their system.. How can a company approve a contract, promise to deliver it in the next few days but it's going to be the 3rd week now with no feedback at all