Pompeylou, I am so sorry to hear about the terrible time you been having.
So just to clarify, you have had both ovaries removed, still have a womb and got on extremely well with Livial.
There is no reason why you should not have carried on taking Livial because it is a continuous combined regime specifically for women who have a womb. My doctor offered Livial to me and I have a womb and ovaries. This doesn't make any sense at all and I am at a loss to know what this gynaecologist is talking about.
Therefore, I would say yes, buy it online and get your life back, you have nothing to lose. Alternatively, you could try getting it from your GP but if you are desperate and don't want to wait for an appointment before starting it then at least get the first lot online (it is usually next day delivery) and then see your doctor about getting it on prescription thereafter.
I think you have been treated very badly indeed and I am appalled.