HDFC Bank — Payment deducted not received card

I have registered for fastag through hdfc online portal. After submission of application through online they have generated application number i. E. HFR01710209, on December 8th, Payment is deducted and got a message within 7 working days you will received. card is not yet received till now. I am trying to reach their toll free numbers but most of the times they are not working. I have paid rs 500 online for this registration. Kindly solve my issues.

Thanks for the update.