Help Get Cancer Patient an Operation

This is my first time creating this type of account. I'm really not familiar how this works. My bestfriend's (Daisy Aglipay) mom was diagnosed with stage 4 colon cancer. Her mom doesn't know exactly her condition or the diagnosis but she knows she'll need to get an operation to remove "something" in her large intestine. The family (my bestfriend and her 2 older brothers), decided not to let their mom know about her condition fully as their mom is already hypertensive and has a daily maintenance. The doctors said that the operation needs to be done as soonest as possible since the patient is at risk of getting infection by not being able to release toxins in the body. They were quoted P500,000.00 plus of course chemotherapy session to follow. They don't even want to think how much it would cost after the therapy, all we're after as of the moment is for their mom to get an operation ASAP! Any amount that you guys could give is very much appreciated!