Flight Delay Air Traffic Control Failure UK 12.12.2014

Bad-Wolf

Our BA return flight from Bangkok was diverted to Copenhagen with only about 1.5 hours flight time left to Heathrow. It was caused by the ATC software glitch on the afternoon of 12.12.2014.
We were put up in a 'car park' type hotel for the night with breakfast and given 150KNR to spend on food in Burger King inside the airport.
We were told initially our flight will depart at 11am on Saturday 13th December. On arrival in the hotel lobby early morning of the 13th we saw a notice stating the flight would now leave at 14.30 as the flight crew had to have a 'minimum break period'.
We were eventually collected by coach from the hotel at 11am and taken to Copenhagen airport.
We got onto the plane around 14.00 and were kept on board for about an hour as the Captain had some passengers who had decided to make their own way home and were not on the flight (how many souls on board etc, etc, etc).
We had no hot drinks or snacks available during the last stage of the flight that eventually landed at Heathrow about 17.30 on the 13th December, nigh on 24 hours late.
This delay was caused by the UK ATC software issue which temporarily 'shut' UK airspace. It was not really BA's fault.

We are unsure as to whether our flight had insufficient fuel to be stacked for ages over Heathrow, or that we had to stay out of UK airspace because of flight backups therefore being diverted to Copenhagen.
We have had very little help from Virgin Holidays who we booked with and only two weeks ago received a simply vague letter from BA stating the flight was delayed and diverted to Copenhagen but does not state the flight eventually returned to Heathrow the following day.
Do we have any grounds for compensation, and who if the answer is yes would we claim from?

Caz3121

http://forums.moneysavingexpert.com/showthread.php?t=5173888

any expenses whilst you waited, accommodation and food would be reclaimed from the airline - duty of care applies even though compensation does not
anything else, speak to your travel insurance