RBL Bank — regarding non receipt of card

I have now realised that rbl has the worst customer services there can be. First they upgraded my titanium delight card and blocked it, next they sent the new card to my old address where i could not recieve it. So i dont have any card to use now and also i am being charge the new card membership fees. They dont any grievance redressal phone number and they are too. Busy to respond to my emails. I regret ever upgrading my card.