So the problem is solved. The Product Key they provide you when you purchase this $30 version of MS Office 2019 Pro is ONLY for testers or developers and is NOT for resale. This is a FRAUDULENT SALE here on Shareware On Sale. I know this because I was finally able to get hold of someone at Microsoft and they checked the Product Key provided to me on my invoice . . . it is “not intended for consumer or for daily use on personal devices” DO NOT THROW YOUR $$ AT THIS!