I sent a donation (last week),,,in an "official" ACS envelope.  The address on the envelope was:"American Cancer Society, 97-77Queens Blvd.  #1110, Rego Park, NY 11374

The envelope came back to me today...Return to sender, stating "Insufficient address, unable to forward."

Any idea why this happened?
Could you sne me some donation envelopes.  Thank you