This company tried to sell me *****ulently a decoder with untrue promises

This company tried to sell me *****ulently a decoder with untrue promises. I complained then they called me confirming that indeed the consultant sold me lies they heard the recordings..they collected their decoder and said they will cancel the contract but now I'm still receiving threats from them asking me to pay something I didn't even use trying to ruin my credit record this is the last massage they sent me and I don't understand why they haven't canceled the contract. FINAL NOTICE, Today is the last day for a payment of R956.00 to be made to OnAir. Failure to pay will result possible action on your account. Pay TODAY by clicking on the link