Not receiving Debit card transaction alerts for HDFC Millenia debit card.

I recently downgraded from platinum to Millenia debit card. 

When I had platinum debit card I used to receive transaction emails for every transaction done using platinum card. But now after downgrading to Millenia I no longer receive transaction emails. I have not changed anything in the settings. 

I continue to receive bill pay emails and the email alerts that I have already set, just these debit card transaction emails are not coming. 

Anyone knows how I can fix it? 

I have not changed anything in email alert setting, but still I checked it. And there is no such option to receive debit card transaction alerts.