As an ex-Googler working in a customer facing role in Cloud you did very well to get a $72k bill written off! It's definitely possible but requires a lot of approvals and pulling in a few favours. I went through the process to write off a ~$50k bill for one of my customers and it required action every day for 3 months of my life.
Whoever helped you inside Google will have gone to a LOT of trouble, opened a bunch of tickets and attended many, many meetings to make this happen.
Whoever helped you inside Google will have gone to a LOT of trouble, opened a bunch of tickets and attended many, many meetings to make this happen.