You said that these lobbyists were friends of yours. Thus I imagine that in the weeks preceding the leak, you must have met them. And when you met them, since they are people who appear to work in the fiscal domain, if we go by one of the titles, they certainly shared with you the concerns that they had about fiscal matters or about their expectations from an eventual budget.
Evidence of meeting #39 for Procedure and House Affairs in the 40th Parliament, 3rd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was block.
A recording is available from Parliament.