I had a spate of that. It's a conspiracy I tell ya.
Stalling tactics
Keep at them, I've been emailing them at ... Customerservice@tfl.gov.uk or try this
customerservice@tfl.gov.uk
You can contact them online but I found their website long winded and hard to navigate.
Keep plugging away, you'll get there.
Everyone else who uses their thou to commute into London and even those who visit occasionally.
Get on it, get our beloved thou's exempted and help keep them one of the most affordable, desirable and best all round machines on the market.