I have been asked to get back to my own country also a few times, not in UK tho, Went thru all sort of discrimination as immigrant. People also picked on my english saying stupid comments but I have to admit more people support me than discriminate. I also experienced a racial discrimination, have been called white bitch few times. But from perspective I have to say that I fell pity for people who pick on other people and discriminate, I think they are narrow minded.