Knee operation for MY MUM NEED IT URGENT

Hi my name Is Vanessa I’m writing on behalf of my mum she needs a knee surgery she is 74 years old , and we don’t have the money , the operation will cost $21000 in venezuela which everything is very expensive and mum

and I don’t have the money and she is in a lot of pain ,

if somebody can help me I’ll aprecciated I want mum be healthy and can walk again