08-09-2019 01:33 AM
08-13-2019 11:15 AM
Welcome back to the forums, and thanks for your questions.
As noted in our My Best Buy Terms, prepaid cards cannot be bought using My Best Buy certificates. This is a change we made earlier this year, so it is something that may have worked in the past.
If you don't plan on using those certificates soon, I can absolutely look into your account and see if they can be converted back into points. Please send me a private message through the link in my signature below this post. if you include your name, email address, and phone number, I can get started. We can't always do this, but it's worth looking to see if we can here.