HDFC Bank Fastag — payment made but no confirmation on fastag purchase

Today[protected] around 12pm i have tried to issue a fast tag (Hdfc) through on line. After completion of all the steps payment of rs. 500/- is also made by me through hdfc credit card. The amount has been also debited but no confirmation made on purchase of fast tag till now. After the payment a message is displayed on the monitor that is "session timeout or error on the page. Please try again after sometime." i tried to contact customer care but the number remain always busy. Please issue the fast tag in favor of me or else the amount may be reimbursed.

Sunil kumar dalei
Mob-[protected]
Cuttack, odisha