Forms: upgrading personal site plan to unlimited site plan

hi, i would like to upgrade my currently forms personal plan (purchased a couple of weeks ago) to an unlimited site plan, how could i proceed? does it enable me to work on local too? Thank you,

Hello,
Thank you for contacting us

Contact us using our contact form.
support.balbooa.com/contact-us

Regards,
Vyacheslav, Balbooa.com