If you signed up before Aug 9, 2021, please click Previous plans to view your applicable plans.
Except the Email, all the requester details can directly be edited from the widget. To edit the contact field values from within the Requester Widget, click on the "Edit" option within the Requester Info section. This would open a pop-up with the fields on the Requester Widget, from where you could edit the values of those Contact/Company Fields.