Ughh i am so sorry and angry for you, im dealing with similar trouble myself and its just heartbreaking. See if they will do your bloods at least (LH, FSH, Estradiol, progesterone, prolactins etc), if not they only cost about £30 privately. The way we are looking at it is; if we can afford a child then we can use that same money for fertility treatment, otherwise it would be irresponsible to try in the first place! Best of luck, i hope you get something sorted - or like im hoping - that you get your sticky BFP and dont need to worry about investigations and treatment!!
In the meantime, what are your cycles like? is there any supplements or dietary changes you can make that could help? For me, being able to chart and take a supplements and herbs makes me feel a little more in control of the situation. *hugs*