On the 12 June this year I cancelled the contract with them and paid R350 for cancellations fees asked them to collect the decoder even now nothing is happening

On the 12 June this year I cancelled the contract with them and paid R350 for cancellations fees asked them to collect the decoder even now nothing is happening. I spoke to Ntokozo Thusi and send her the email to collect the decoder and stop belling my account.They are sending me pillar to post please help