Fastag — hdfc fastag not received

Address:	Raigad, Maharashtra, 410210
Website:	v1.hdfcbank.com/htdocs/common/fastag

I have applied hdfc fastag through online and made payment of 500 inr . The reference number of the application is HFR402876. I have uploaded signed copy of the final document and RC and since then there is no update.

There is no way to contact HDFC FASTAG guys as the customer care number given is busy or not being attended.

I have been with HDFC for more than 10 years now (Saving acc, cc, loans, hdfc life) and this is the worst moment with them.
The purpose of applying online is faster processing otherwise would have applied and got it in any toll gates. Please update on the status.