RongYitong's family signed the contract at the wrong time. Can you change it?

I can't. RongYitong was initiated by Fuzhou Municipal Health and Wellness Committee in conjunction with Fujian Strait Bank. Its family members signed the contract incorrectly and had to cancel the contract again, so it could not be changed. RongYitong is a regional health and convenience service platform in Fuzhou initiated by Fuzhou Municipal Health Planning Commission, with the participation of Fuzhou Health Care Big Data Center and Industrial Park Special Working Group and Fujian Strait Bank.