Bad customer service Mr price

I bought a Samsung galaxy A03 last week Thursday the 5th of Jan and I was given the option for airtime and data and I was told all the benefits will be available in 24 hours. On Satwrday I went back then I was told is actually 48 hours. To date the phone is still off and not even the number was sent. I called until I ask them to cancel the contract for airtime but I was told I cannot cancel. I will appreciate if I can be assisted