Yes, Bambu Pay has a structured fee system based on transaction type:

Incoming Deposits (Request Money):
No fee for up to two (2) transactions per calendar month of $500 or less.  Our fee is 0.50% of the amount of the transaction for transactions in excess of two (2) per month and above $500. Minimum deposit is $1.

Outgoing Transactions (Send Money):
Our fee is 0.50% of the amount of the transaction.