[7] The BWF had informed the NBA in October 2014 that the deadline was changed from August to April, but a staff member overlooked this notification.

[8] Kinji Zeniya, the NBA's executive director, issued an apology, acknowledging the disappointment of fans and those involved in the tournament preparations.

[9] The NBA apologized for a registration error that prevented the mixed doubles pair of Hiroki Midorikawa and Natsu Saito from competing in the 2022 Japan Open.

[12] On 4 July 2023,The NBA issued an apology for an administrative error that prevented women's singles player Aya Ohori from participating in the 2023 Canada Open.

While the NBA is exploring sending Ohori to other tournaments to compensate for the missed opportunity, the impact on her Olympic qualification remains a significant concern.

[13] On 7 July 2023, in Tokyo, NBA President Mitsuru Murai explained that Aya Ohori could not compete in the Canada Open because the association failed to properly submit her entry permit application.

The NBA acknowledged that its staff did not correctly submit the necessary documents for Ohori’s Electronic Travel Authorization (eTA), which is required to enter Canada.

Igarashi announced on the 13 September 2024 that she and her women's doubles partner were unable to participate in the 2024 Denmark Open due to a registration error by the NBA.

Subsequently, the association issued a written statement, offering a "deep apology for the great inconvenience" resulting from their error.

[23] On 1 October 2024, the NBA held a press conference in Tokyo regarding the issue, admitting to multiple entry errors for international tournaments that resulted in missed opportunities for Japanese athletes.

[24] NBA President Mitsuru Murai apologized for the series of entry errors, expressed disappointment, and took responsibility for the repeated mistakes, calling the organization's structure "sloppy".

[26] The Japanese Olympic Committee (JOC) called a full investigation of the NBA after it was discovered that a former employee embezzled approximately 6.8 million yen during the 2018 fiscal year.

[27] On 25 March 2022, NBA Executive Director Kinji Zeniya held a press conference in Tokyo to discuss the non-disclosure of the embezzlement by a former employee.

They cited concerns about the impact on the athletes and members, the former employee's social standing, and human rights considerations as reasons for withholding the information.

The former secretary general, who was responsible for the grant, misinterpreted the requirements, resulting in the NBA receiving approximately 230,000 yen in government subsidies that it was not entitled to.

[32] This decision resulted from the government's dissatisfaction with the NBA's insufficient response to the scandal and slow implementation of preventive measures.

[37] This decision has sparked criticism online, with many expressing sympathy for the winning athletes who were not involved in the scandal but will not receive the awards.

[39] The JOC also expressed concerns about the NBA's delay in verifying and publicly announcing the facts of the issue, as well as its failure to proactively improve its governance, which caused anxiety among players.

These included: reviewing the composition of the Board of Directors to improve its effectiveness; creating an administrative manual for accounting procedures; and establishing a system of checks and approvals involving multiple officials and staff.

[44] The Osaka IC has been a significant event for many years, playing a crucial role in developing the skills of players and garnering support from badminton fans.

Despite implementing reforms such as restructuring the board of directors, strengthening the secretariat, and improving accounting practices, the NBA still projects a deficit of 300 million for fiscal year 2023.

[45] The NBA's financial difficulties began with a deficit of 370 million yen in fiscal year 2022, primarily caused by inflated costs for international competitions such as the World Championships.

President Murai stated, "The badminton world has no future if we continue to spend as we have been doing," and announced a policy focused on drastically cutting costs and increasing revenue.

Despite the budget cuts, the NBA will continue to focus on developing young players for the 2028 Los Angeles Olympics through grants.