ammolock products are a waste of money for a healthy tank. Thats why you go through a cycling process so you dont have to deal with ammonia.
If you have a fresh sample of biospira, and follow the directions, I've never heard anyone say any differently than it works. There is a thread debunking some of the things that have been said about it, it doesn't work miracles...but almost...and only if you use it right
Its possible that your biospira was past its expiration date, or wasn't refrigerated correctly...any number of things. Plus...if there isn't some ammonia for it to consume within a day or two of putting it in, then it will probably die off.
Are you trying to do a fishless cycle with biospira?? Or did you put the biospira in and add fish at the same time?