I just got my rebate check for April/May/June which I filed for the last week of Sept. You have until Dec 31 to file for July/Aug/Sept, and until Mar 31 to file for Oct/Nov/Dec, etc, etc.
If MVYC did stop filing for customers it was probably because of the increased amount of paperwork involved. Now they have to file 4 times for everyone instead of just once (times how many customers?)
From what I have heard a lot of people missed out on their first quarter rebates because of lack of publicity, and even some marinas didn't know what was going on. Fortunately, the April/May/June rebate for most people is smaller than the July/Aug/Sept which you all still have time to file for. So, hurry and do it now.