HDFC Bank — fastag not received

Address:

Chennai, Tamil Nadu, 600125

I submitted application for Fast Tag on 06-Dec-2019. My application reference number is HFR923045. I got a confirmation that the ID has been created but i have still not received the Fast Tag.
Customer care doesn't work and HDFC Doesn't seem to bother about their customers. This is very pathetic.
If HDFC doesn't have the capacity to handle fast tag transactions then they shouldn't be doing it. This is very stressful. At-least inform your customers and don;t accept request from new customers by cheating them that the tag will be issued in 7 working days. Its cheating.