Unauthorized debit order no feedback given

Homechoice must contact me urgently and tell me who gave them authority to debit my account on the 22nd as our agreement clearly states that the debit order must go off on the 25th of every month this is not only breach of contract but also disrespect,doing as you please in my account ,I want this amount reversed to my bank account immediately as I did not authorize this ,I am sick and tired of Homechoice and their continues errors ,once I complete paying off what is due to them I will never use their services again ,as this is repeatative and ludicrous,nor will I refer them to my family and friends,urgent feedback is Required