checkers60minutes

Good Day ! On the 6th of December i placed an online order to bay necessities for my child on the Checkers 60 minutes app ! the order was paid in full but i only received half of my order without a refund , i have been struggling to get hold of checkers 60Minutes costumer service since the 6th of December , i do have reference number of my complaint and nothing is happening! this is **********!