dublinpilot
Your best bet will be homebriefing.com
For French ones, I just file with Olivia.
For Irish or UK ones, the girls in Shannon are very helpful
Outside that I've occasionaly used hombriefing.com (which you were kind enough to tell me about years ago
)or emailed Shannon.
I've not really had a difficulty filing flight plans. My point was more that AFPEx said that the facility to file via Heathrow would continue. As far as I can see it must continue for the UK to be able to meet it's obligations to accept flight plans from passing traffic.
I can't see Heathrow closing, and was just asking pelagic if he was sure that they are closing.