******* debit order

I have been billed for months and months for services I dont want and have tried to cancel - after phoning last month this month they have sent 3 sms's for various amounts and all different descriptions, Phonebox, Kin Tel PM, Mag Zone, Rescuebox, TechsuredTechtrace, Sos Squad, Techzone and Yello Datamp. I am unemployed and so is my husband and now there are insufficient fund charges on my bank account aswell!! I want this cancelled IMMEDIATELY and refunded for the money they have taken without my approval in prior months!