Have they done any tests to try to pinpoint what is causing your infertility? I'm not familiar with clinics ion Kuwait, but if you've been trying IUIs for a while with no success, in two different countries, I'm not sure changing clinic will help. I would say, the first thing to do, if you haven't already, is checking if her fallopian tubes are open. Otherwise, IUIs will not help, as the sperm and egg won't meet.