[Resolved]  HDFC Bank Bank Fastag — welcome mailer not received

I received hdfc fastag from my car dealer on 13th nov but haven't received welcome mailer on my email or phone. I cannot register without wallet id. I have been trying to contact customer care but the number given on the site-[protected] never connects through. This is really annoying. You make the fastag mandatory but the implementation process is not smooth. They have not provided any email id on which customers can raise their issues. Just a landline number that diet work.