Once a week, you will be visited by Time, the Healer, among things decreasing your menaces (Wounds/Nightmares/Scandal/Suspicion) and bringing payment for your profession. When this occurs, a storylet should be visible everywhere in London titled A Professional Reward. This will let you claim a reward based on your profession.
Said storylet also has an option to use your Professional Perks, of which you gain one each week up to a max of four. Professional Perks can be used from your inventory as well; they fall under Curiosities. They can give second chances, halve menaces, or with four total can be converted into a Trade Secret, which can raise a stat significantly or be converted into a significant sum.
Actually, if you’ve received the note saying “Memory fades; pain departs; rewards arrive! [You may have a Professional Payment waiting at your Lodgings; wounds and other hazards have faded, as has your reputation in the public eye. You may also have received Fleeting Recollections, which will allow you to remove Irrigo, if you have any.] …”, you should have the Professional Reward storylet there…if it’s not there, I think that is worthy of reporting as bug.