Cancellation of Contract Order

I have recently app**** for a online contract with Telkom Mobile. Debit order when off last week, have not received a order number and delivery of the device. Unfortunately I would like to cancel this order but after endless calls, email and store visits I'm still left in the dark. No one can assist me. Can some one please give me feedback on the cancellation of the order and the completion of this order, Ref number is *** & ***.