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Wednesday 24 January 2018 at 01:08
Quoted from rkahr:Just to follow up, this:
http://blog.stamps.com/2017/12/26/important-usps-making-changes-first-class-mail-international-flats/
...says that "Effective Sunday, January 21, 2018, First Class Mail International Large Envelope/Flat service for merchandise will NO LONGER be available fr...
Source: http://pinside.com/pinball/forum/topic/postage-rates-going-up-again-jan-2018#post-4191961