Got drugged in Ho Chi Minh yesterday. Stole my phone and Mastercard

So yesterday i met a couple of guys from my country and we drank beer and had a good time on the party street. Next thing i know is that im sitting on a random guys scooter on the way to his apartment, i dont remember his face, i dont remember him taking my phone at all. What i remember is just being very upset about losing my phone but still remained relatively calm. In a proper manner, i asked a guy in a green uniform who was nearby when it happend (i think) and it just felt like he was part of it all.

The guy has withdrawn more than $600 (the card was in the phonecase", do you think its possible to get this back because i am already on a tight budget... Maybe need to make police report for that and im probably leaving tomorrow. Whats even more scary is how he knew my pin-code. Something that sucks too is that all my pictures are gone. This was a big shit storm and it has completely ruined my mood and now i probably cant continue traveling as long as I planed.

Has anyone been in this situation before? I would gladly take all tips from you guys.