I want a business email and personal

I want a business email and personal

I have a free business email account with my own domain, but I would also like to have a personal account for example....sam@zoho.com, but when I try to sign up to the free personal account, Zoho will not allow me as my mobile number is already registered to my business account? 

I realy want to use Zoho for personal use as well as business, but cannot see how? Can someone please advise how I do this and if its even possible? 

Thank you in advance