Accidentally I deleted my Owner role (and the only role I had) in my Azure subscription and now it seems that my account cannot be used as I cannot add roles, nor create resource groups and not even create a support request.
Edit:
After this, I created another user in Active Directory named Daniel (sample@Dani ) and assigned it the Global administrator role.
Then I logged into the portal with this new user (sample@Dani ) and navigated through Active Directory > Users > selected affected user > Assigned roles and there I assigned all existing roles, but I don't see any changes, and if I go to Azure role assignments the portal it doesn't show my subscription.
I'm not sure if I'm missing a step.