I've only skimmed it, but are these the basic facts:
Donor eggs and sperm from the same two people;
Two embryos (so genetic siblings);
Two surrogate mothers at the same time, Ukrainian nationals;
Give birth in North Cyprus, on the same day;
The children are stateless because they don't gain automatic North Cyprus nationality, nor Ukrainian nationality;
Commissioning parents are two women in Britain in a same-sex relationship, aged late 50s or 60s at the time;
The legal case was for them to adopt the children in the UK.