I was looking for a new cheaper doctor to save money. To do this I used the command "Search" (in the Home), I wrote a random name and I found the doctor that I actually have. To buy him I've used "buy now" option using only 3 tokens. However, the system didn't respond to my action and I clicked more than once. So now I spent 12 tokens for the doctor only because the system was crazy(to be honest, after using "search" command, it often happens). I'm really sure(!!!) I had more than 60 tokens, now 49. If you have the history of my spent tokens you can easily check this!
Thanks