They took the money and made a run for it, the owners are not even in the UK so they honestly don't give a f**k about the FCA nor any audits to begin with.
Any EMI that lets you open an account, asks for minimal documentation, use shady IBCs along with it and lets you transfer money with no questions asked in the most regulated continent in the world, they definitely won't have the "rigor" and seriousness to safeguard your assets. If anything, they probably were living the high life with customer deposits until their ponzi scheme went belly up with FCA requests and they︀ decided to disappear
I also highly doubt the FCA has time to waste with these︁ clown ventures and any investigation will probably take years to be done, giving plenty of︂ time for the owners to just move on.