Front and back office staff can't talk to each other to load and provision a product

Completed an upgrade on of your black Friday specials in store, was for the Made for Me S package. Was meant to come with additional data as well as 5000 MTN to MTN minutes for 6 months. Received the data but not the minutes. Spoke to the contact centre and advised no product loaded, they can't assist go back to the store. Tried calling the store to save me a trip but they dont answer the phone. Went in, salesperson says he did everything correct. After some time and a phone call by him to the contact centre filed a query. Received an sms in my absence to say the query was resolved. When I got back and checked no such luck. Called the contact centre, they can't find any feedback for the call, it was just closed as resolved. Once again they send me back to the store. Saleman isn't sure what to do, was supposed to escalate to his manager. Followed up with him for feedback, been a week now and nothing. Surely between the stores and the back office staff this should be something easily resolved without it being my problem of constantly having to run up and down. The staff should have means of talking to each other. Can someone please assist??