Meeja whinging

As a media freelance who occasionally crosses the divide between PR and journalism - as seems increasingly common - I appreciate that the PR's job is not always a happy one. But Cake PR of London seem to be taking it out on muggins, the hapless freelance on the receiving end of their less-than-impeccable competence.
Nearly 3 months ago, I went on a PR trip to the Lake District organised by Cake on behalf of fair trade fruit company Agrofair. The trip went fine, but because of the short notice I paid for my own train and taxi fares, which totalled over eighty quid. The following week I sent my tickets and receipts and an invoice into the PR girlie at Cake who I'd been dealing with. She acknowledged receipt and said she'd get the cash sent asap.
Have I seen that cash yet? Have I buggery. Maybe in smug London PR-land eighty pounds is small change, but in Northern freelance land it's a fair wad on spending money, and I want it back. The rude cow has even stopped replying to emails, and the accounts department don't seem to know what I'm on about, which seems to imply that she hasn't even registered the claim.
So, warning to fellow freelances etc. Avoid Cake PR. And to fair trade companies wanting to operate ethically, avoid them too, if you're as interested in freelance journalists not getting screwed over as you are in just treatment for majority world farmers.
Ho hum.