Reward email link not working

[#1]

Hi, 

I received my reward link earlier today. Have tried it several times throughout the evening and it always comes up with this error!
Can you help please?

Thanks

Looks like there’s a problem with this site

plusnetrewards.com/broadband?CampaignCode=PLUSRET sent back an error.

Error code: 464 No Reason Phrase

• Check to make sure you’ve typed the website address correctly.

[#2 · Accepted solution]

Have tried it in another browser and still comes up with this message - 

This page isn't working at the moment

If the problem continues, contact the site owner.

HTTP ERROR 464

[#3]

Solved myself, and used my I-phone!