Are your ads being disapproved recently despite the FB rules were respected?
Have a look at your display link: due to forthcoming changes, using text instead of valid URL may be causing your ads to be disapproved so, as a guideline you can use the following examples:
|may be disapproved !|
This checks, as for Facebook announcement, should not be applied before Monday 6th February 2017 . However due to an internal bug caused by Facebook dev team, this checks have been enforced now causing the ads to be disapproved.
Simply using a valid URL or removing the link description all together should make your ads approved again.