Applied for a job which required sending in a paper application. Did it all in good time, thought I might have a good-ish chance of getting it.
Yesterday had it returned to me in the post by Royal Mail. Not delivered due to there being unpaid postage on it- £1.09, apparently.
Except, looking closer, the unpaid postage was 9p and the RM handling fee was £1
I put a first class stamp on it originally.
AIBU to be annoyed? It's now way past the closing date so no chance of re-sending.
I was completely unaware that a light, a4 sized letter would need more than one first class stamp. Had I known, I would have happily paid the 9p more 
As it is, for the sake of 9p, the application has been transported to the other side of the country, held in a sorting office and then sent back to me- probably costing considerably more than 9p.
They had to open it up to get my details to send it back to me (another
data protection anyone?)- if they'd contacted me in any sort of good time I would have, very happily, paid the 9p to get this job application which I slaved away over in.
Grr. Fully expecting people to come on and say it's wholly my fault but just feeling so annoyed!