It really smells like a scam I would be very careful investing in this. I can make a white paper like this in 1 hour. There is nothing inside. OP is a newbie on this forum. No escrow, no git depot. No work to show... Scam scam scam I bet.
Common, let's not jump into conclusion here. So far Quantum has been very transparent with regards to their project. I saw in the first page that there is an escrow: ESCROW: @BelTirid (Gaper Kenda) (CEO of Xaurum project) so I don't know you saying that there is no escrow. The pre-sale will end on May 6. So let just wait and see where the project goes after the pre-sale.