HDFC Bank — Fastag

Address: Panvel

I applied for Fastag and it was approved on 29th December, 2019.
I still haven't received the Fastag. I tried calling the customer care and no one is answering it.
I have attached the email I received below:

Thank you for the details! Your application has been received. Your application reference no. is HR[protected]

Our representative will get in touch with you soon.

You will receive your FASTag in the next 7 working days. Contact [protected] for queries.

Thank you.