Any other payment methods other than paypal and cards?

Hello, is there any other payment methods other than PayPal and cards. As I have Indian debit card which does not have international transaction facility and also I don't have credit, card and even PayPal doesn't accept my debit card. Now I am unable to purchase bootstrap studio. can someone help me with this?

You are best emailing the developers of this app using the contact section - they will respond quicker via that method

I did but still no response from there end.

If you did then you just wait. Nothing we can do on the forums, we are just users and the devs will see it faster with their support contact than in here.