My Mom just received our invitations (ranging from 4.25" x 5.5" to 4.5 x 6.25", standard greeting card sizes) and we're bummed about the envelopes that come with them. If you purchase invitations from Zazzle, the envelopes say "additional postage required." This is even though the website clearly states "Postage rate for this size invitation (up to 1 oz.) is $0.49." As of January 24, 2014, the standard stamp costs $0.49.
We contacted Zazzle to see if we could get plain envelopes without any writing, and they said: "Unfortunately, all envelopes that Zazzle supplies, as standard, have such markings on them. As such, we would not be in a position to provide white envelopes, without markings, as this is something that we do not stock." So much for "standard white envelope included."
We're bummed that this writing looks tacky and that we weren't informed that the envelopes would have -any- writing. The post office gets the final say if we need extra postage, so why, Zazzle?! Ugh.