Charged for Payment Protector Insurance

I am getting charged for PAYMENT PROTECTION INSURANCE on my credit card when i do not remember signing for this? Who authorised you to put this insurance on my credit card?<br> <br> I even tried calling the call centre and i was transferred endlessly between departments.<br> <br> Please cancel this. I already have my insurance elsewhere. <br> I am disappointed by service. Time to close this credit card facility like i did with my current account i suppose.