How to write a certificate to refund the money when the travel company didn't go to the scenic spot?

First of all, confirm whether there are tickets for the scenic spots you didn't go to. If not, you can't get a refund. If there are, ask the tour guide to return the tickets directly. If not, contact the travel agency you originally signed up for to verify whether the fee is refunded at the travel agency you originally signed up for, and ask the tour guide to write a certificate:

Proof

XX, 212, XXX was unable to participate in the original tour of XX scenic spot due to the travel agency's self-adjustment, XX. Tour guide name: XXX Tour guide contact information: XXX Date: XXX