Doesnt work :(

Great idea but app doesnt work like its supposed to. I woke up an hour later this morning! I tried it both with the phone on and off silent. The alarm works just fine until the phone locks and the the problems start. As I slide to unlock however, the app start up... whether its a minute or an hour after set time. If this issue is not fixed I want my money back because the app is useless. Please help. Thanks!

JustineeN about SpinMe Alarm Clock - Guaranteed Wake Up for Deep Sleepers, v1.0.7