How to delete Dhani app account permanently?

The Dhani app offers healthcare and finance services online.

Here are the steps to consider:
1. Start Dhani and log in to it
2. Select the option (3 horizontal lines)
3. Choose contacts from the list
4. Click on the Gmail address
5. Send a mail to the address asking for the removal.

Dhani App Customer Care Helpline No:-089458592O1.
I have an account with the Indiabulls Dhani app. I do not intend to use any of their services anymore. Can someone tell me how to delete the Dhani app account permanently? I am sure it can be done online from the app itself. Any suggestions would be helpful.