Do I need to pay postage for Agency to Forward?

[Roberta2017]

[This question is not related to SASE). I am sorry if I do not express my question clearly.

I never had thought about this before (total newbie here) but I read (somewhere here) about someone who got his/her LOT back because the letter did not include postage for it to be forwarded to the Celeb. Is that usual?

If I sent a LOT in an envelope and put that envelope into another envelope addressed to
Celeb
at John Doe Talent Ageny
Main Street
City, State USA

do mot people also put stamps on the inside envelope too?

Or have most people found the talent agency/agents will forward without that extra step/extra postage?

Thank you for your thoughts/experience.

[BossC]

I have had my letter returned to me because the agency put it the wrong forwarding address on my letter but I do not add additional postage to my requests. Just my SASE and the envelope with the first address on it.

BossC