In your mentioned circumstances If you are redirecting to the payment site again, it might be due to a delay of payment processing or technical issues. try checking the transaction history, if it is successful through your bank or UPI. if the payment was confirmed then log out and then log in back into your account and refresh the page. if still the issue is persistent, contact the support or help desk of the platform, provide your transaction id, registration email, screenshots etc.

this may help to get the access of the service you have paid for.