Iui treatments uk

Hi I live in the UK and am planning on having another baby end of 2017 -2018. I am a single lesbian and I have done some/alot of research and have come across the iui treatments for single women wanting to conceive, but it's so expensive my cycle has always been regular and on time and back in 2014 lost a baby at 15wks and I haven't tried since then. I wanted to find anyone else in London who is in the same place I am at, single lesbian wanting iui treatment but can't afford 3000