I registered Zoho with a google linked account and now I can't access the Control Panel.

I registered Zoho with a google linked account and now I can't access the Control Panel.

Hi,

I registered Zoho with a google linked account, and I can't access the Control Panel.
It said I need admin privileges, but I am already the only user of this account. 
Please can anyone from Zoho kindly advise how I can access the Control Panel.

Thank you.