クーリング・オフについて教えてください。

If you have entered into a contract for products or services using a specific transaction method such as door-to-door sales, telemarketing sales, multilevel marketing transactions, door-to-door purchasing, etc., and you wish to cancel the contract, you may cancel the contract for any reason within a certain period of time. There is a "cooling off system" that can be canceled.
Cooling-off is done in writing, by writing the necessary information on a postcard and sending it by registered mail or simple registered mail to the representatives of the sales company and the credit company (if you have a credit contract).
Please make a copy of the front and back of the postcard and keep it as evidence when you receive it at the post office.
In addition, even if the cooling-off period (8 days including the contract date in case of door-to-door sales, etc., 20 days including the contract date in case of multilevel sales) has passed, please do not give up and contact us. Depending on the conditions, cooling-off may not be possible even with the above sales/transaction methods.)
For more information, please contact the Inagi City Consumer Affairs Center (consultation phone number: 042-378-3738).
The following information must be filled out on the back of the postcard.
　
Contract cancellation notice [Contract date] XX month, XX, 2008 [Product name] ○○○○
[Contract amount] ○○○○ yen [Sales company] Mr. ○○ in charge of ○○ branch of ○○ Co., Ltd. [Credit company] △△ Co., Ltd. (if you have a credit contract)
I will cancel the above contract. Please refund the paid ○○○ yen. Please pick up the product.
Heisei XX year XX month XX Address Inagi City ○○○ Number ○ Name ○○○○