When clients tell me this I have a couple of questions for them. First, did you complete all of the suggested number of treatments? If you don't finish the recommended treatments, you can't expect results.
Second, I ask when they had their previous laser treatments? If it was many years ago, I suggest giving us a try. We have the latest technology on the market and that makes all the difference in the world! Some of the older lasers simply aren't as effective. Also, you get what you pay for. If you get a cheap laser "deal", there's usually a reason for the low cost.