Just booked a tour to India/Nepal with GAP. Before even having departed on the trip, I contacted GAP to provide me with documentation of my departure/entrance from/to India into Nepal so that I can obtain an Indian double entry visa.
Their phone representatives were completely unhelpful. I have had to call GAP FOUR times today to ask for this documentation to be sent to me, and between being sent documents for which I cannot open the format or being told that 'nothing is guaranteed' with respect to the time at which I could expect to receive such documents, I am still empty handed.
I certainly hope the tour is better than this, if I ever get there. I will certainly not be going with GAP adventures again based on the level of grief that the booking process has caused me.