Waste of money, music doesnt work!

I wanted to have music added to my video so I bought the music for $0.99 but when I add it to the clip it doesnt have any sound at all. Theres no support on how to fix the problem. This is a waste of money. I gave away my dollar for nothing!

byncline about ClipStitch video collage - stitch video and pic together on a clip photo collage with frames, v1.2.2