Hi,
Can you try Incognito mode or private browser, clear the cache and try again. If it you have MFA enabled you might be going in the loop and worth checking with Microsoft support desk if you own the account - https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2
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