Hi @Iden Busia ,
Thanks for reaching out. There are a few potential variables that could prevent you from being able to create the support request.
The subscription type is CSP. As documented here:
CSP customers can't create support tickets themselves. They need to contact Partner for support. CSP Partners are required to receive incoming support requests from their customers, diagnose issues to the best of ability, and then resolve issues that are within scope of the baseline support boundaries.
There might be multiple subscriptions involved, and you could be missing the access level for one or more of these subscriptions. Like you mentioned, in order to create the support request you need to have Owner, Contributor, Support Request Contributor role, or a custom role with Microsoft.Support/* assigned at the subscription level. If there are multiple subscriptions involved, you need to have the required access for each subscription.
You could be signing in with a duplicate account (Microsoft Account or Work or School account). It is possible that you are using the same credentials to sign in with your Microsoft Account as with your work or school account, and the system is recognizing the wrong one.
If these scenarios do not apply, I would recommend reaching out to the global support phone numbers for assistance with this issue: https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2
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