your porting info refers to "A signed authorised order form and personal authorisation letter. (To be completed online)"
Please send your query to firstname.lastname@example.org
Just put a response on the Forum then we all know.
Once you have signed up for your FreshPhone account and paid the porting fee, you will be redirected to the porting application form which you will complete and sign online and then return back to the submission site to upload the completed application along with your Telephone bill and ID copy.
Hope you find the above in order.