Barclaycard (Barclay Credit Card Service) — Outstanding Settlement

I had got a call from Barclay regarding LE menbership and they told me about many offers barclay provided. I had agreed on that on the condition of after receiving the detail terms and condition.
But they have charged me Rs 5000 before providing any detail in written. and the offers they told not mach with the fact so I did not use that card after that.

I had request them to cancel that facilty and amount reversal but they didn't do the same for last six month. For web off I had paid them Rs 400/- and Rs 420/- two times as per telephonic conversation with customar Care for the same. Not get any action need help.