Digimon World Re:Digitize

I have Digimon Dawn and Dusk GBA games.

I saw this game from Ebay and Amazon.

I wonder is it worth to buy this game? Does it come with English or not?

Also, I saw something odd on ebay. I got a funny feelings it might be fake GBA games.

On Ebay it show Digimon Ruby and Digimon Sapphire. it have game case and game too.

I did my research on this www.gamefaqs.com and there is no game of that on list.

Question is: Why did Ebay allow ebay buyer to sell fake games?
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Inspiration:
Life consists not in holding good cards but in playing those you hold well.

First of all, you can't possibly own Digimon Dawn/Dusk as GBA games because they only exist as games for the NDS.

Secondly, Digimon Ruby/Sapphire is fake in every way and only Pokemon Ruby/Sapphire exist for GBA as a similar sounding title.

Last of all, this game does not come in English and there are no official reports of a port to NA.