Your advertisement was not listed under the Special Ad Category due to the credit listing on your ad or on your website.
Your advertisement was a VIN specific ad, and if your page was taken down due to selling the vehicle, the ad would have been disapproved because the car is longer available.
Meta does not list the reason your advertisement did not get approved on the email, and will only list the reason when you log into Meta Ads Manager.
If you do receive an email about disapproval, these are the reasons why, and we will work towards fixing any issues the advertisements may have.
Meta's Review Team for advertising can be inconsistent, but we will always make adjustments to ensure that your advertisement is posted as soon as possible.