Hey aspirant,

If you have done your payment, and then if you exit it always comes back to the same page from where you have done the payment. Then you have to check your bank account and you have to check that if any money is deducted from your account or not,by checking the mini statement or account balance you will be able to know if the payment is done or not. If done then don't do payment again, and if not done do your payment again.

Hope this helps you.

All the best.