You might want to check the facts instead of relying solely on your imagination. The Davis government ordered supplies be cut off on April 2nd.
Your snide remarks about "imagination" aside, the fact is that Beauregard didn't tell that to Anderson until the 7th, and communication with the fort was still continuing when Chew (not Lamon, thank you) showed up for his interview with Pickens and Beauregard on the 6th.