Bought A Microsoft Point Card. Can't Redeem.

When Microsoft announced the transition from Microsoft Points to local currencies, it was announced that Microsoft Points can continue to be redeem (https://majornelson.com/2013/08/09/an-update-on-the-change-from-ms-points-to-local-currency/). [...]

The support agent told me that Microsoft Points can no longer be redeemed. [...]

How can I redeem the Microsoft Points gift cards now?

If you go to that page you linked to, it says at the bottom:

"We’ll continue to accept purchased Microsoft Points Cards and codes
until further notice"

[Emphasis by me]

So if I remember correctly, it was announced at some time that Point codes had to be redeemed until March or April 2015, after which you can't redeem them anymore.

So unfortunately, you can't redeem your point codes nowadays.

I can't redeem a microsoft points prepaid card - similar error code. 686bf0af-28de-409a-a7c1-8b146a67c823

Microsoft Points cards work the exact same way as Xbox Live Gift Cards. A 1400 Points card bought for $20 will put $20 in your Microsoft Account for example.

What happens to Microsoft Points cards?

Microsoft Points cards you purchase in retail stores will continue to be redeemable on your console and Xbox.com until further notice. Microsoft has no plans to discontinue acceptance of previously purchased Microsoft Points cards and codes. Xbox gift cards
will be available for purchase in retail stores and through online retailers starting in late 2013. Availability of Microsoft Points cards varies by region.

http://support.xbox.com/en-CA/billing/microsoft-points/microsoft-points-retire-faq

Call the place where you bought it or if its Online just contact Microsoft on Xbox Support to tell them that you can't redeem your card

hi here is info on Microsoft points-
support.xbox.com/.../microsoft-points-retire-faq its states that *What will happen to Microsoft Points Cards?

Xbox Gift Cards (denominated in your local currency) will be available for purchase in retail stores and through online retailers later this year. Microsoft Points Cards you purchase at retail will continue to be redeemable on your console and Xbox.com until
further notice. Microsoft has no plans to discontinue acceptance of previously purchased Points cards and codes.

What if I have codes and/or Microsoft Points Cards that I haven’t yet redeemed after the transition?

Go ahead and redeem them! Even after your account transitions, we’ll still accept purchased Microsoft Points Cards and codes until further notice, and we’ll add to your account an amount of local currency equal to or greater than the Marketplace value of
those points. When you redeem a Points card or code, those Points will be retired, and your account will begin using your local currency instead. Microsoft Points cards and codes that you purchased and redeem after the transition will expire one year from
the date the Points are redeemed.*