HDFC Bank — hdfc fastag

Address:

Bangalore, Karnataka, 560077

I have applied for HDFC Fastag by paying INR 499 and got a reference for my Application: HFR906061

but after 5 days no news or intimation about the progress so for. there is no way to contact the helpline as the number is always busy or no one pickes up after waiting long

while applying I got informed that therre will be an SMS about the details of the application but so for no information either through email or phone

kindly help to resolve the problem immediately