I booked a ticket from Singapore to Vietnam with jetstar and was so confused. When it came to the step "Payment", i enter my mastercard number and then click to the "confirmation" step, it said that my card was declined, i need to use another payment method or another card, then i type again the same number of the same mastercard, the same problem happened. I'm so afraid if they will take money from my mastercard for 2 times. What should i do now ? Pls help !
International
Singapore-Singapore
Vietnam-Ho Chi Minh City