It seems to depend on where you go to post them off as to how much you pay! However, the last time I paid 81p was before the "Post in proportion" came in! I understood that this was for Inland post only! So perhaps I should include in the mailer "Dear Kodak thanks for processing this film"! Then it would be personal correspondence! Thanks for this info.
Only 20 miles from Nottingham RichardE but in which direction? I will try and leave some KR64 next time I drop into Boots! But I could not believe my luck when I got nine rolls from the Victoria Centre branch! However, like you I think I have enough KR64 for my Kodachrome Project!
Thanks for your message and I hope you are fully recoverd now.