content type hub url - SPO admin but "waiting for access permission"

DuncanH910 thanks for your time. We've an A1 plan, hence the support is free - best effort and after creating a case and working with them the solution found was to have me added to company admins group and use only the built-in contenttypehub site collection to publish content types to other collections. No solution was found to publish types from another additional site hub, which makes null all MS online documentation regarding this possibility (it's even stated that one could create up to 2000 hub sites...). It's a pity since we were evaluating SPO as an option to manage our documents and we need a way to segregate content type creation among different teams. That said, we were forced to discarded SPO as a viable solution and go with some other solution, probably SpaceDoc. Unfortunately.