Joanne, I am sorry you had that experience.
I received three or four such requests in the past. I had two shops at the time I received two similar requests (same person) for one of the most expensive items in each shop.
I am not against donating to good causes, but I do not like to be approached at my shop - I donate from home, to causes I have carefully researched.
A couple of times I just ignored the requests. But the last time I received a request I informed the person that it was against Etsy's policies to approach shops requesting contributions. The person was very nice and apologetic, stating she did not know.
Indeed, Etsy’s Policies do not allow contact to request donations. See below.
Check Item 1, under the title “Conversations”, Etsy’s Seller Policies:
https://www.etsy.com/legal/sellers/?ref=listThe same content is in the Buyer Policy
Also, you may want to read this thread from the Forums:
https://www.etsy.com/teams/7722/discussions/discuss/17390865/