I've asked Pokémon company about my situation on this tournament, here is their Answer:
Dear Daniel ****,
A solution for your issue has been suggested.
Hey Daniel,
Players must meet the following criteria before they are displayed in the rankings of Pokémon Wi-Fi tournaments:
Complete the minimum number of matches, as outlined in the rules for each tournament
Maintain a matches started to matches completed ratio below the disqualification threshold
*There are additional requirements to be met for player's to receive Championship Points.
Pokémon Organized Play is committed to creating a fun, fair online tournament experience. We believe that players who disconnect mid-match, whether intentional or not, create a negative experience for the community. The disqualification threshold is used to discourage this behavior. While we do announce the minimum number of matches that a player must complete to qualify for the rankings, we do not announce the disqualification threshold.
Unfortunately, when a mid-match disconnect occurs, technical limitations of the Wi-Fi server prevent us from identifying which player initiated the disconnect. Both players are credited with the disconnect, creating a “false positive” for the player who did not initiate the disconnect. These false positives are not ideal and Pokémon Organized Play continually evaluates how best to mitigate the effect these have on the community.
We believe players who are attempting to legitimately compete in a Wi-Fi tournament will complete the vast majority of the matches they start. Players can mitigate the effects of false positives by reducing the likelihood of their own unintentional disconnects while battling. Using a secure, stable Wi-Fi connection and turning off the game system after exiting the game’s Wi-Fi tournament menu can mean the difference between appearing in the rankings and exceeding the disqualification threshold.
While Pokémon Organized Play provides some leeway for disconnects, it is possible for a player to exceed the disqualification threshold by accumulating enough false positives. If you believe that you have been excluded from the rankings through no fault of your own, we sincerely apologize. We will continue to refine our processes within the confines of the current technical limitations and work toward overcoming these limitations in the future. We appreciate your continued support and hope to see you participate in the next Wi-Fi tournament.
-Pokémon Support