Breach of contract and false information

Am disappointed with the **** dstv is doing ,they call and give false information with dstv wifi. I asked them if they won't be deducting before I receive the wifi connection, they said yes. Today on 16 August they deducted the wifi amount of which I don't have it on me. Breach if contract . I have reversed the amount ,and would like to cancel the wifi contract .and to cancel authority and allowance to deduct from my bank account