Unauthorised debits

I was offered a cellphone contract and accepted the installment once they told me over the phone that it was approved.A few weeks later I was told that I was declined.I was fine with their decision as they were the ones to call me in the first place with the offer.<br> However since December my account has been debited for 3 add - on services!How does this work if I was never given the phone!<br> I sent an email asking for a refund to [Email Removed] on 18 January 2016 and included my bank statements but I have had no response since then.And this morning I was debited again for these amounts.<br> I am appalled and disgusted with this type of service and I would like advice on how to take this issue further and recover my money.