Callum is also found to be a match and Zoe and Walter leave to continue her treatment .
Nell is a match , but Toadie and Sonya refuse to let her go through with the transplant .
Callum is also found to be a match and Zoe and Walter leave to continue Sonya 's treatment .
Nell is a match , but Toadie and Sonya refuse to let her go through with the transplant .