We do completely understand your frustrations and agree two years is a long time. That is how research works sometimes though, it can be unpredictable. We did our best in those two years to get grant money, as we have, and to improve our methods and partners to assist with new technologies in sequencing. We have now come to the stage where we are confident in our methods and sequencing.
We have grant money for the participants that want to remain participating for free, especially if they have filled out all the surveys (one of our grant is covering allergies in dogs). As for participants that want their dogs sample to be sent out ASAP and therefore get the results more quickly, that is why we made this a non-profit so that they have the OPTION to fund their dogs sample.