ok, so it was not the case of your extra page having more likes than your main page. it still is very very strange that they would unpublish your page due to a merge that happened 10 or so months ago.
they will always aprove your merge, because both pages had a similar name and that is allowed by Facebook. however, if they suspect of fraudulent acquisition of likes at a later time, they won't hesitate unpublishing your page. right or wrong, it's your problem, not theirs. you can only hope they approve your appeal request and do it as quickly as possible.
when you receive a reply to your appeal, you will see a large code being part of the email address. that means that address is unique to you.
you may reply to that email and present your case. be polite, reassure them that you didn't do anything intentionally, appologise, if you have any screenshots that can help you, attach those, as well as any documents of may have regarding your business. you might be lucky. keep trying if you don't receive a reply in 2 or 3 days.
if they see they may be wrong in unpublishing your page, they will reinstate your page like they did to mine.
