I just noticed that my case switched from "Awaiting buyer's response" to "Buyer hasn't responded" with a Take Action link (instead of view details). Once I clicked Take Action, the next screen said that the case can be closed manually on the 8th day after it was opened. After choosing to close the case, I had to pick the reason (first one is transaction was completed successfuly - no FVF credit, second option gives the FVF credit).