Limits when travelling

Is there a limit on how much you can USE your Monzo card when you travel (I mean payments, I know there is a limit on withdrawals)?

When does Monzo consider that you have moved from the UK, does it have something to do with how long time you spend abroad?

My trip is to Brazil, my Monzo card is British and I plan to stay 2-3 months.

All the limits are in the app

When you tell them.

In order to remain a British resident there are some basic tests such as do you own UK property, will you be in UK for at least 14 days in a tax year.
I travel outside UK for over 6 months sometimes and Monzo has not queried my account. I hope this continues.
Safe travels