Personally, if they got increases for CPI inflation plus even 1% for the years prior to the China Flu, and the big increase based on inflation plus a lot more for 2022, that would be a reasonable compromise. I don't expect a 20% pay increase back to the amendable, that is not reasonable nor is it fair to the company. But to give the company a free pass and not get ANYTHING for the last 3 years is completely unacceptable and gives the company the go ahead to drag out any future contracts without fear of actually paying you for work done. This is YOUR contract. If you are willing to reward management for this behavior, don't whine when they do it the next time.. and the next... and the next....