Medical funds for children dialysis

I would like to raise money for a brother and sister who have renal problems, they are struggling with dialysis and reviewing of fistulas . I have been touched by these children who can’t lead a normal life like other children and parents are struggling to raise money for dialysis twice a week for both children. As seen on th picture uploaded the children ‘s life is difficult. The brother had a donation of a kidney from his brother but it failed after a some months and the sister has been desperately seeking a donor without any success. They both need donors for them to be able to live a normal life. The sister is giving her story on this website http://ayamaahsoul.wixsite.com/website/home/i-m-alive-that-s-all-that-matters.
 These 2 children will benefit from the support the funds will be used for their dialysis, their reviews and possibly kidney transplants.
the support is needed as soon as possible.  The support will mean a lot to these children and the family and to me , it will be nice seeing these children well and be able to finish their education as currently always unwell and difficult to attend all classes.
i would be grateful to receive funds and support as it will save lives of these children who can grow up to be successful professionals and would be able to help others. This is a touching story to me , my prayers go to them everyday