HDFC Bank — fastag is not delivered since 10 days

Address:

Bangalore, Karnataka, 560035

I did not receive my fastag though 10 days are passed since i applied. My reference number hfr853275 and pathactic situation is i am not able to reach out to their contact number[protected] since 10 days as always it's busy.in next 4 days i need to drive for 1100 km touching several nhs and i do not know what to do now

Fyi, i have been recognized as a premier customer by hdfc but i do not know is this the premier service that they are giving for the customers