Ignore community members. But ultimately if your requests or questions aren’t heard then given it is closed source and you’re a paying customer then i would leave a bad review or update an existing review. Obviously if it’s open source then i wouldn’t recommend that route but for closed source they already have your money so the only way to make them care is with reviews.

Tldr i think you’ve been quite reasonable but don’t afraid to leave bad reviews for closed source apps that have your money and who are ignoring you