Moved to Finance since this is a donor issue.
Typically you can't delete anything until the record retention period is past. For the US, that's 3 years plus current.
But you should be able to set it as inactive so it won't appear when you're trying to do donations.
Have you searched the
Help Center? Try doing a Google search and adding "site:churchofjesuschrist.org/help" to the search criteria.
So we can better help you, please edit your
Profile to include your general location.