Try other banks such as HSBC. They may not have this sort of tight control on immigrants. Building societies are generally more picky.
> 听一个朋友说买房也有分期付款一说,不同于贷款,每月给中介钱就行。有人听说过这个吗?
Haven't heard anything about that. Be careful though as property purchase is probably the biggest one you'll ever make in your personal life. If the timing is not right, then it is not right. Wait a few months you may get a huge bargain.