Airtel — mobile did not recharge

Address:

Gautam Buddha Nagar, Uttar Pradesh

my airtel no was recharged for rs 50 on dt 06-11-12 thr' pnb debit card Transaction Number: R83618006b12 but my mob did not recharge. if i try again then shows
"Another transaction with the same payment option is already in progress in one of the tabs of your browser. Either complete that transaction first or select a different payment option to proceed from here. However if you want to use the same payment option right away then first restart the browser and try again."
but i am unable to recharge my mob successfully.....