They’re actually not prepaid, they’re counted as postage due at the destination office and either charged to their account automatically or paid at the time of pickup.
There are lower cost options like nonprofit or third class postage, but that’s usually what they’re paying to send out the junk with these business reply envelopes in the first place. Business reply mail AFAIK is charged at the first class postage rates.
Probably one of those cases where it’s only allowed because there’s no rule specifically forbidding it, and some determined individual figured out it worked one day.
They’re actually not prepaid, they’re counted as postage due at the destination office and either charged to their account automatically or paid at the time of pickup.
There are lower cost options like nonprofit or third class postage, but that’s usually what they’re paying to send out the junk with these business reply envelopes in the first place. Business reply mail AFAIK is charged at the first class postage rates.
I know it’s not technically prepaid.
But it’s wild that the postal service wouldn’t have an option here to only accept letters.
Probably one of those cases where it’s only allowed because there’s no rule specifically forbidding it, and some determined individual figured out it worked one day.