For ~£650 you can turn up in person in their office in Croydon and in 24 hours they'll sort out your spouse visa for permanent leave to remain.

For ~£450 you can send your passports and stuff in by post and hope to be in the 95% that get done WITHIN SIX MONTHS; I guess if you're in that 5% where it takes longer you have to just hope your passport's not expired by the time you finally get it back.

So basically a racket to make the government an extra £200 and boost the sales of fast food in Croydon. And provide the criminals down there with more options for muggings, natch.