I am sure I am telling you what you already have done but have you contacted Bin Kitty to see if someone can foster until a permanent home can be found or Feline Friends.
If noone is available to do so then you could surrender to RAK Animal Welfare Centre who will then look after her, but that is a drive to get out there. While they have some rules they will discuss they keep potential adoptees for as long as they need and the facilities in the centre are good.
There is also a new shelter in Um Al Quwain but I know almost nothing about them.
Hope something here is of help.