****ed with Dream Rewards

I app**** for iPhone contract, then I received a call from this number +*** and Its Dream Rewards, they advised that they will give a code to collect the phone in store and I must accept debit check to receive a sim card with airtime every month. They deducted money to my account no one call me again or text about. I keep on calling the number does not go through to cancel the debit order does not allow me.