NRK investment debited my account

On the 26th of June 2015 I saw a debit order that went off my account, I enquired since I don't know them and never gave them permission to debit my account. From then I was promised that I will get a refund and till today I haven't received my refund.<br> <br> I call them every 2nd day to follow up and the mysterious manager will call me and load my refund but none of that happened.<br> <br> Everytime I call, \he's busy"like honestly??? And he does not bother returning my calls. """