Evernote deleted a month's worth of notes and didn't send them to trash. How can i retrieve them?

[gillyag 0]

Hi, 

i was in Evernote when all of a sudden it started deleting all my notes. At first i thought i'd accidentally locked a key, but i when i checked i hadn't. I quickly shut down the browser and when i logged back in on chrome, a months' worth of notes had disappeared. I've checked in my trash and they aren't in there either.

I've put my mobile phone on airplane mode and when i go into the ios app i can see the notes in the list, but can't see the content. 

Is there a way to recover my notes? Can i sme how bring them back on my ipad, phone by turning off syncing?

Thanks,
Andy