We do care about our publishers’ needs so we have lowered the minimum payout amount to 25 USD, except for Wire - which starts from 550 USD. If the balance is lower, the amount is carried to the next payment cycle.
If you registered earlier than the 1st of October 2017, you should have at least one payment completed to set the payout to 25 USD.
PropellerAds takes no commission for your withdrawals. We pay the high fees for sending payments so the minimum threshold for a payout could not be lowered any less.