Microsoft
MicrosoftI'm really sorry to hear about the difficulties Joyce Family.
It sounds like we all at Microsoft need to do a better job of getting tech support routed to the right places - I'll be following up with people from around the company to explore how we can do better w.r.t features in O365 and fielding tech support calls.
In terms of the feature availability, everyone that is on the fastest Insiders should have the feature, and many of the people that are on the monthly updates should have it. Note that it is only rolled out to a percentage of monthly customers so far. We should have something to say in the next couple of weeks about when the feature will be available to all users of Excel on O365.
But until we have a firm announcement about full availability, the only way to ensure you have the feature is to make sure you are on the fastest update (insiders) channel for O365 (there are some posts on this article with a few links that you may find useful). If you'd like to do that, but are running into trouble, please message me offline and I'll see if I can help you through it.