I do not know about that incident, but what I can confirm to you is a level bust coming out of Gatwick. It caused an RA for us, we had to climb to avoid them, and we gave an RA to another a/c. When Gatwick director got hold of them to query the incident the pilots replying were very rude to him. Do not know mate but not a very professional image. I have not seen them since in Gatwick, and I do not know where they come from, but with such clowns upfront they better keep away from UK airspace before they kill someone.