[quote name='sergioalb64']First of all, forking over $30 to get Manaphy via Ranger isn't a fair thing to say; I really liked Pokemon Ranger and Manaphy was just a bonus to me. The game you pay $30 for is quite good; good, crative gameplay and a decent quest.[/QUOTE]
Most people didn't like Ranger.
[quote name='sergioalb64']By the way, what's a Wonder Card?[/QUOTE]
It's an in-game card that let's you know you've downloaded an event Pokémon as well as an in-game flag for your game to know you've downloaded the event and will no longer be able to do so repeatedly. Deleting the card will not change anything. Once you've downloaded that event Manaphy, you cannot redownload it unless you delete your game save and restart.
The same applies to the Battle Revolution gifts involving Pikachu, Electivire and Magmortar (Magmortar's password has yet to be revealed). As well as any other Pokémon involved Mystery Gift events.
[quote name='sergioalb64'] And is it really one download at a time? No lines, but long wait?

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They probably might be doing this to make sure everyone's doing it right so as not to have to run around helping kids who might not be sure of what they're doing. Plus to hand out the coupons as well.