HDFC Bank — fastag no update

Address:

Thane, Maharashtra, 421301

I have applied hdfc fastag through online and made payment of 500 inr (200 for security amount & 100 as the top up amount). The reference number of the application is HFR834736. I have uploaded signed copy of the final document and rc/aadhaar and since then there is no update.

customer care NUmber is busy and no reply from HDFC even after 12 days