Cartrack charge what was not in the agreemt

Cartrack offered me a tracking upgrade and called me for the offer, which sounded amazing and i agreed with them for an amount of hundred and something , come debi-check the money is not what we agreed about on the call, i declined the debi-check and they called me and i explained my problem, i asked for that recording and still they decided to blacklist me for something we did not agree on. **** company