I know GetCID Info sites are down but I can help you to active your Office by installation id.
Drop your installation id and i will provide you 1 confirmation id for Free rest @ $1.
I also sell Keys:
Windows 10 Pro 1PC Retail 1.5$
Windows 10 Pro 20PC Mak key 18$
Office 365 account 0.95$
Office 2021 Professional Plus 1PC Phone : 3$
Office 2019 Professional Plus 1PC Phone : 3$
Office 2016 Professional Plus 5PC Online Key: 5$
Office 2021 Professional Plus 5PC Online Key: 13$
Office 2019 Professional Plus 5PC Online Key: 13$
My Skype ID : live:.cid.afc21522bf98cf1b
Contact me to buy keys at best price and first support to get to get confirmation id
bektigprasetyo@*.com