Bad Service and Unprofessional from I Store Woodlands

I signed a Telkom contract inside I Store Woodlands and after completing everything I was given a different device. I store realised that they do not have stock at the end of the transaction. They then said they will cancel the transaction. I left the store without a device as they said it has been discontinued. Telkom billed me for the contract charges and stated that I store must give proof that I did not receive the device. I store woodlands is failing to provide Telkom with proof and Telkom blocked my other number with them stating early termination of a contract. They are refusing to waiver the full term contract charges against my name. I am unable to use the number that I pay for Monthly due to this. I have engaged both companies for the last 37 days with no luck, only promises .I store woodlands Reference number 265684