UNAUTHORIZED DEBIT ORDER AND THREATENIN WITH LEGAL

A DO deducted from my bank account, i had same reversed not knowing what this DO was for.I contacted the number supp**** to me by my bank for Loan Locator as i had no details of this company.I contacted them after the DO reversal and explained that this was unacceptable and i never agreed to or signed any agreement with them.The lady was very unhelpful and told me that i mustn't worry she will cancel whatever the agreement and sort it out. Few months later i received an sms that i am in arrears with the agreement and they will hand me over for collection.I contacted them and spoke to a guy who ensured me that he will follow up on this dispute and retrieve the previous recorded telephone call i made.I heard nothing further from them until i received more sms's req to pay them.I phoned them again and spoke to Daniel and was told that he cannot trace any of my previous \recorded"calls \""NOT SURPRISED\"" but will investigate"