Bram Can I increase the limits for pinning outside the EU? Both for PIN payments and withdrawals. if so, how can i do this?
The highest ATM limit you can set per card per day is 500 Euros. This is unrelated to country, but make sure you activated the country you're traveling to in the card settings so that it's enabled there. See also: https://together.bunq.com/d/6635-what-are-my-daily-limits
Can I withdraw a foreign currency in a foreign country? (Dubai)
Yes. You can use the Mastercard at all ATMs worldwide that accept Mastercard.
Can I withdraw money with a credit card? If so, where can I find my PIN numbers?
Yes. You set the PIN number yourself in the app. It's the same PIN that you use when paying in a shop and putting your card into the terminal. If you ever forget your PIN, you can always set a new PIN yourself. See also: https://together.bunq.com/d/60-change-a-cards-pin