Thailand Tourist Police Website: Telephone number 1511
Keep this number incase of any problems anywhere in Thailand.
Tourist Police is to help you, they understand that tourism is very important to their country. If you think that you were scammed, they will try to help you. But of course they don't do miracles, be reasonable.
Transportation - Bangkok
Bangkok three railway system use different contactless smart card for payment (as of 2019)
Airport Rail Link uses Smart Pass
BTS/BRT uses Rabbit Card [green / dark green line]
MRT uses MRT Plus Card [blue / purple line]
Car Rental Info
Taxi: use Grab taxi app or for regular taxi, make sure they use the meter
Bangkok’s Public Transportation System