Question for anybody who has bought a DSi from an online store recently

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Just a quick question for anybody who has bought a DSi in the last couple of months or so:-

1) What are the first three letters of the serial number on the bottom? (It should be either "TEF" or "TEH")

2) Where did you buy it from?

I only ask as im looking for one made in a specific factory since they use different plastics.

<EDIT> Deleted much of the extra info in this post as it was probably too text heavy and no-one replied.

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Hope no-one minds if I bump this topic, im still looking and am hoping someone might have bought a DSi for Christmas.