There are monthly limits in Brazil for transferring money abroad using boletos bancarios. Right now, you can only pay money to TransferWise via boleto, so we have to adhere to these limits.
The monthly limits which apply to our partner in Brazil (and therefore, us) are $3000 (USD, or its equivalent in BRL) and R$10,000 (BRL). As exchange rates change every minute, we need to limit our transfers so they stay within both of these limits at all times.
This is why we’ve recently changed our monthly limit for transfers from Brazil - reducing it from R$9,999 to R$9,000. If we’re able to increase our limit in future, we’ll make sure to let you know.