Unable to sign up for new plan

I have been trying to help get a new phone plan for my friend all day today. Order of events:

• Created new account
• Selected plan
• Added my referral code
• Order submission says "Code is not valid"
• I removed the code
• Order submission says "Code is not valid"
• I tried again in incognito mode
• Order submission says "Code is not valid" with or without referral code
• Used random code from reddit
• Order submission says "Code is not valid"
• Created brand new account with a new email address
• Order submission says "Code is not valid" with or without referral code
• Tried 3 different devices
• Order submission says "Code is not valid" with or without referral code

At this point I am assuming they don't want new accounts? This is in Ontario.