ChatBot Configurator Setup : failing on [Get Subscriptions]


I am working my way through the ChatBot Configurator setup.

I am on the "Select a subscription" stage > "Add a new contributor role to your subscription" section. 

I am getting the following error when I try to get my subscription

I have checked my steps to add a new contributor role a number of times without any success.

The only difference I can see between the setup guide and Azure is that the guide has "Azure AD user"

whereas Azure only has "User, group or service  principle"

I'm new to both Outsustems & Azure so don't know if this is the issue or something else?
Would really appreciate your thoughts

Many Thanks

Community GuidelinesBe kind and respectful, give credit to the original source of content, and search for duplicates before posting.