The reason they pulled your listing and not someone elses is because someone (ie. another eBay member) would have reported your listing. There is a "Report this listing" link at the bottom of every listing. Otherwise eBay most likely wouldn't have done anything because they generally don't check people's ads.

eBay SUCK like that, they are so quick to pull a listing without even finding out the facts. They pulled one of my sister's listings because she said "Cash on pick up welcome". It is a legitimate payment form, but someone reported it as saying they will accept cash in general (even if the item is posted) which is against the rules. eBay didn't even read the listing themselves to be sure, the just pulled it . My sister sells multiple items on eBay a week and all her listings say "Cash on pick up welcome", it's so frustrating!

I would either email eBay back or talk to their live help.