iWorks to pay on a mac mini 2014, Why?

[Thunderboltedge]

I just got a mac mini on ebay formatted, it is a 2014 model so the iworks should be for free, but on the Applestore he lists me the prices as a paid app.
Is that a mistake of the Applestore as any new devices since 2013 should have it for free or it is due to the second installation since it is not brand new?

 

[Gav2k]

It's because the macs already been registered. Just email support and they'll enable the download.

 

[Thunderboltedge]

It's because the macs already been registered. Just email support and they'll enable the download.

moreover when I tried to associate the product to the id it told me it was still associated to another one, I think he did not disassociate it