[Resolved]  HDFC Bank — fastag - not yet received

I have applied fastag from HDFC on 7th Nov, 2019 and the reference number is HRF335509. I have not received the fastag yet and no communication about the same.

There is no email id and the customer care no is always busy, when it gets connected no one answers the call.

There must be a communication from the bank or the fastag.

I have not experienced such online services where we don't have any information.
The details should be shared by the bank.