Did you just loose the confirmation SMS/email you received?
Not an issue! BookMyShow has a way to retrieve it.
You can now visit our website in.bookmyshow.com or application and click on Resend Booking Confirmation option present on the bottom of the page.
Enter the same contact details as you entered while transacting, click on Send and there you go. The confirmation SMS/mail is with you again.
It's that simple.
In case you still don't see the booking details and If the amount is charged. This could be a failed transaction, you'll receive the refund within 4 to 5 working days. It may take a bit longer 10 working days for nationalized bank. If it's a wallet transaction amount is refunded within 24 hours.