My China Bank VISA Credit Card Hotel stayed in 500 yuan, and the advance payment was 1000, which I didn't return after checking out? How long will it take to return it? Why is this happening?

Cardholders generally need to obtain pre-authorization in advance when spending in hotels or hotel merchants, and can use the pre-authorization number and the actual consumption amount to do "pre-authorization completion" processing when checking out formal consumption. This will automatically cancel the previous pre-authorization.

If the cardholder wants to cancel the previous pre-authorization, he can ask the merchant to cancel it, and the merchant will apply for cancellation through the issuing bank.

If the cardholder's pre-authorization is not cancelled voluntarily, it will automatically become invalid after 30 days from the date of obtaining the pre-authorization and the quota will be restored.