Mu command of English during negotiations remained wanting, I constantly used translators.
I found out SMAPSE on the Internet. Employees are polite, they advised me the school in London (although there are branches in other cities) - Shane Global.
Excellent school: teachers are highly qualified experts. As for accommodation, I've chosen a residence in the center. From school to the residence it takes 20-30 minutes to get. There was also a small sports hall, and reception, cleaning, laundry rooms and common rooms where all the students gather. Near the school there is a shopping center of the whole world, Oxford Street, with one of my favourite shops, Selfridge. Here you can buy clothes of any kind, there is a store - Disney Land. From the school in walking distance there is Hyde Park, where you can play football, run, walk. The park is huge, there is an artificial lake, where in good warm weather people are sunbathing, and a bunch of cafes.
The only downside, as some students might think, is that the interior of the school is a little shabby.