I am terribly sorry this hasn't seemed to have helped you. We don't have any problems with these bait stations, they're brilliant for home use. Gel is 100% the best product to deal with Ants. There could be a few reasons as to why this wasn't effective enough for you. One could be that the nest is too large for 3 x Ant Gel Bait Stations to deal with. We always suggest to customers who suffer from ants nest, that they place gel bait stations down around the middle of March beginning of April, at this time of the year the nests are quite small, so you would only need a couple of bait stations to eradicate the nest. At the time of your purchase, the nest you had would have been rather large, and there would have been hundreds of ants working around the clock to find food. You'll find that they are taking the bait and they will be dying but due to there being such a large number of ants in that nest, you'll think the numbers aren't decreasing. Another reason could be that you had multiple nests, if that's the case, 3 x Ant Gel bait Stations will not be enough. Around this time, we'd suggest to wait for them to fly off, otherwise you would spend a fortune trying to kill the nest. Unless they are venturing inside, we'd then suggest to buy some bait stations to control those coming into your home. We appreciate your feedback and if you want any advice or have any questions for us, please don't hesitate to call.