Bajaj Finserv — Bajaj finserv and rbl super credit card

In Feb 22 above company together offer me No any fee/charges on credit card, after that they charge 2999 rs. On it. When I make complaint about issue, they agree to reverse charges which discussed on customer care number.They reverse me 1000/-only.when i again complaint about balance amount reverse they told such amount is reverse able and balance is the annual fee charge on u were not reversable and you must have to pay any how.i so many time do complaint thru customer care, mail etc.No one can resolve this issue, charges/penalties are going up and up in statement.At initial of card i was purchase @ 2000 + along with these amount, they already put amount of their fees and charges of 2999/-when i complaint about this no solution received from them.So i paid my purchase amount of 2000 + to them.But still the date no solution given to me.
I am suffering so many harrasment from their collection departments by mail/call/ massages etc.The Bajaj finserv are spoil their reputation along with rbl banks products.