Barclay/credit card
Fake transaction not reversed after many requests

I HAVE A CREDIT CARD OF BARCLAY BANK

THERE WAS A TRANSACTION IN MY ACCOUNT OF RS 15000. BUT TOLD THE CUTOMER CARE MANY TIMES THAT I HAVE NOT DONE THIS TRANSACTION BUT THERE IS NO RESPONCE FROM THE BANK

THIS TRANSACTION WAS MADE ON 23-2

MY CARD NO IS 4339 4883 3495 2653