debiting my bank account *****lently

I cancelled my cellphone contract with Autopage in December 2015, subsequently I have had my bank account debited for insurance and the handset in January, at the end of January I was billed again an amount of R342.59 and R377.43 one is my account the other one does not belong to me at all. Autopage know where they have taken the funds from, they have been given the reference numbers and still expect me to supply them with proof that it has come off my bank account and are refusing to refund me with immediate effect. I was pushed from pillar to post. the service receive from Autopage is completely unacceptable in every possible way, they are quick to ake money from a customers account and refuse to refund immediately.