I need to change my sent from email address, Please help?!

I need to change my sent from email address, Please help?!

Hi There,

I set up my zoho invoice using a personal email address as at the time i didnt have my biz email set up. I have changed my primary email and email ID to my biz email, yet when i send invoices, it sends from my personal.

I cant see in my profile or settings where i can change this, it no longer shows my personal email in edit personal details, just my biz one.

Any help appreciated

Thanks
Steve