Can't fetch all transactions

Hey, using the transactions GET endpoint immediately after authentication, providing no since and before params and a limit of 100, I am presented with only 83 transactions. My account has been around since 2021 and the oldest transaction I receive is only from last month.

What could be going on here? As far as I’m aware, passing no since and before args should fetch all transactions for the account and given that I’m performing the request immediately after authentication I should have the permissions to do so.

Any help would be greatly appreciated.