Both of those are true IMO.
She never knew about any money ever being dropped off. And after this horrible crime, she found out after the fact that JW dropped that money off...and that the reason he was told was because of the opening. Which is almost assuredly the excuse given for the ransom.
The first statement being that she never knew about it happening before. And the second statement being what she found out after the fact, a day later or whatever.
That's not how I read the first quote (which BTW is from a later interview than the second quote). It sounds to me like she's saying she "knew nothing about the money that was dropped off May 14", which contradicts what she said earlier when she said she knew money was supposed to be dropped off and that she spoke with the employee who confirmed he had dropped it off.