I confirmed from the phone before buying the voucher, the CS said that I could use the voucher and I booked the room for 2 hours, eh arrived at the place, when I wanted to pay, instead I was not allowed to use the voucher, the difference was only because of the "I made a reservation". I have also seen the time I bought a voucher, the time before I started karokean, eh CS doesn't believe it. His face is very dirty too. Until finally the manager called CS who picked up my phone before I went to in vizta, then the CS answered "because it's crowded", so his explanation on the phone to me was wrong.