Fully concur... Sympathy once you've paid, but you will not get a refund.You can challenge the ticket after payment but will get nowhere. You've paid, they won't refund. You should have refused to pay and then appealed and would no doubt get the 'on this occasion' letter.
If you're a Blue Badge Holder you're able to wait for up to 3 hours on double or single yellow lines, so you should have told them to stuff it.
ALWAYS, always contest a parking ticket - especially if you're a Blue Badge Holder (and post something on here as plenty on here able to help out and advise)Usually I wouldn't contest a ticket because if I do get one its because I have parked wrongly, but this time if I hadn't stopped I could of had an accident
If a Blue Badge disabled parks on double yellows near a junction only the police can deal with it (for the first three hours) and they'll only deal with it if it's causing a serious problem.Surely with a disabled badge you can park on double yellows so long as you aren't contravening other traffic law e.g. near a junction, brow of hill etc.