Yep, had same problem recently. I get the impression they are ripping people off now and I am very disappointed with them. Final price went up from what they quoted. Now deleted their app.
All very interesting answers, but I have a question.
If you apply for 60 day tourist visa in your home country, do you have to know the day you depart, or is there a time limit that you have to use the visa?
I am not sure where you are from, but I know the British Embassy gives you a letter along with the new passport to take to immigration. Which makes life a lot easier.