ebay bucks confusing

[michaelyo-6]

I don’t know how to apply my bucks at checkout! I click the button to take me to it but it just wants me to put in a code.  I can’t find the codes for my ebay bucks certificates. I’m very confused.  Please help

[mtgraves7984]

Have they expired? If so, you won't find a code. 

[eburtonlab]

eBay Bucks are earned over an entire quarter (three months). At the start of the next quarter, eBay issues certificates for the Bucks earned in the previous quarter. Those certificates are only good for thirty days.

The next certificates are due to be issued around January 3rd -- you will have to wait until then to spend Bucks you have earned this quarter.

https://pages.ebay.com/rewards/faq.html?ssPageName=STRK:MERWX:LNLK:FAQ