PayPal email offer $5 off next purchase

[CPLiam]

I received an email offering $5 off my next PayPal purchase and a reminder email of the same sort.  When I went to activate this offer, I received the message "Sorry, you may not be eligible for this offer."  This makes no sense as I checked the eligibility requirements and would certainly meet those.  Any clue why I'm blocked from saving this offer?  

[varphi]

Same for me except instead of telling me I’m not eligible it just loads and loads and loads and never gets to the page no matter how may times I open it or refresh it.

[Lameforumformat]

Is this really all the information available regarding this topic? Am I the only one finding it absolutely crazy that PayPal is sending $5 off links for random stores? Is this a phishing email? Kinda freaked out here