Shamrock

I have the same problem. All year long i have been sharing a notebooks and the indication that it has bèen shared is signaled next to the notebooks. However, the person just notified me that all notebooks with over 170 notes have not been received. When i checked her computer, none have been received. Last year all notebooks were received. I am a premium member and she is not a premium member. I originally had everything set to view and edit. She has a windows computer I then unshared and reshared Nothing works. She does not receive the notebooks Any suggestions? Is it possible to contact evernote directly since i am a premium member. And how would i do that?