[Resolved]  HDFC Bank — fastag

I got a new car in noida where dealer has given me hdfc fastag. The vehicle number has not been updated as vehicle got registered later and fastag was issued same day. Unfortunately, my email id updated in the system is incorrect. I tried calling customer care number given on fastag for hdfc but either it is continueously busy or no one picks up the call. There is no email id given to raise complains or request. Even on hdfc fastag portal there is no way one can update the information or raise request for updating email id or vehicle number. Such a poor service is not expected from hdfc bank.
Thanks
Sidharth
[protected]@gmail.com