I know that's how they work and I know that they charge L/L as well. Luckily, I do not need to use letting agents on either side, I rent properties out myself but that particular one was for a friend who doesn't have spare cash to be spending on unnecessary fees. I would understand £50, £100 even, but £250!!!! That's way too much.
Anyway, it was just me being nosey. Nothing better to do on bank holiday weekend, that's all