Discordant Missive?

Hello,

I am in need of a letter that does not exist. I can offer up to three coded instructions in return, although it will have to wait some short duration that I might acquire the information to encode within. Letters should (should not?) be addressed to unnaturalredhead. Additionally, how is it customary here to indicate once this request has been fulfilled? Thank you all kindly,

-unnaturalredhead (also known in some locales as Russell Brandt)

Addendum: fulfilled! Thank you again

I’ve (not) sent you a card

I’ve (not) responded- thank you!