It's good to hear I'm doing things right, and that there is hope. Last month I moved them to where they get more light, started them on a new food, and re-planted one. I'll keep my fingers crossed.
One thing most Phals need is a 10 degree drop in temps between day and night in order to initiate spikes. In the fall you should start seeing new spikes emerging as the night time temps drop. We keep our house very cool at night....low 60's in fall and winter, so I have no problem getting any of my Phals to rebloom.