Infinia points - exact expiry date?

[sd.ac]

I am aware (or believe) that Infinia points expire in ~3 years. I also know that my monthly statement 'warns' me about expiring points (30 days & 60 days). However, 60 days is still a little 'small' to make a sensible redemption. Is there any way to figure out when the points are expiring? I assume they expire in batches since each batch of points was earned at a different time.

I called customer-care and they couldn't help (they have the same information that appears in the statement). Interestingly, they tell me you can always call them after the points expire and they will re-validate the points - sounds suspicious but worth trying for anyone in that situation...

Thanks

 

[TripleAce]

It’s 2 years in some articles and 3 in some.
Confusing and vague.
Better to redeem or keep a proper track!!