How to use xbee socket design in my product ?

I would like to know if it is possible to design a product (a board) with xbee socket where I can plug xbee card ? If so is there a cost and can I use “xbee compatible” or “xbee ready” notification on my product ? All of that is about your brand.
Same question for the case that I want to design an “xbee card” like for example with Sigfox (cost and name).

Regards

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