Following on from my previous two suggestions, after making a payment via Google Forms with the Stripe integration, the payer receives this message:

"Form filled along with the completion of payment"

There is no full stop and the English is poorly written with errors.

May I suggest: "Your form submission has been received and the corresponding payment has been made successfully."

I do fully understand that the developer is likely to be working with English as an additional language, but these messages do not work for our school as our customers expect an excellent level of English.

I hope my suggestions are helpful and that they help you to market your excellent Google Forms add-on.