Just pathetic! We extended our stay in Shanghai just to go to Disneyland; at considerable cost. We bought (and paid for) the tickets in March through Viator, for our Disneyland entry date of 2nd May (so that's 2 months in advance). The entry voucher was emailed to us! On the 1st May we get notified that the tickets can no longer be supplied. Just appalling customer service! So two months beforehand they accept our booking (& money), only to cancel the day before we were to go! I will never use Viator again and I'm certainly telling all friends not to use them!