Proのお試しを使用した、その際に費用が掛かるが1週間以内にキャンセルすれば無料との事。使用してすぐに使えないのでキャンセルしたが請求されている

Hello ​@Masanta,

Thanks for sharing your concern. We understand this situation can be frustrating.

Please refer to the following article for guidance on Acrobat Reader Mobile and Adobe Scan Premium subscriptions, including trial cancellations, billing inquiries, subscription management, and refund-related requests:

https://adobe.ly/43OojYd

The article addresses the most common scenarios and outlines the available next steps for assistance.

~Tariq