Can actually reduce, but at first I didn't understand why it couldn't be used. We have to buy the code on the day we will use it. For example, yesterday bought the first code specified on April 20, the code cannot be used. So try to decide to buy another code, specifying the date of use, April 16. At midnight on the 16th, the code can be used straight away. As if the time of klook Will be a little slower than in Thailand Recommend, if you want to use the code at all, simply specify the date of purchase as the current date ??