AppStoreConnect Access

I have been given Admin rights by my client who has an active Developer Account. I can login and create certificates, etc. on developer.apple.com but when I try to go to appstoreconnect.apple.com it always takes me to another account that we have access to under the same login (is always a random one). Is there a setting our client needs to activate in permissions? We have admin access so we should have access to appstoreconnect right?

I am having the same issue, also have Admin permissions. Have tried in both Google Chrome and Safari, also after turning all ad blockers off etc.

AppStoreConnect Access
 
 
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