I presume the amount of $25 was interest charges on the unpaid levy. It doesn’t end up in the Strata Manager’s pocket but goes to the Owners Corporation funds.
You can of course direct the Strata Manager to send the account to your agent, but as an owner you are obliged to see that payment is made on time. Your Strata Manager is correct, there is technically no requirement to send accounts.
However it is not good practice for an agent to miss out on sending accounts or to delay them.
If this amount was interest then the Act is very specific about how relief may be granted to an owner from imposed interest charges. It requires a Special Resolution at a General Meeting to allow this, in other words it’s beyond the powers of either the Strata Manager or Executive Committee to provide refunds.