The phrase "to decline any application" means to reject or say 'no' to any request or submission that has been made.
Sentences with «to decline any application»
We may also decline your application for a particular cat if we do not think the cat you are interested in is a good fit with your household. (palscats.org)
Just like with pre-existing conditions, there are plenty of life insurance companies that are going to automatically decline your application if you're over the age of 65. (insurancescored.com)
In the extreme, they may decide to decline the application altogether if it's revealed that your application has many missing disclosures. (quotacy.com)