Neck Tite 2 months post-op and no difference, should I see my final results by now?

38 yrs old w/minimal neck sagging and jowling. I got Necktite 2 months ago w/no difference. Dr. said he did not need to perform liposuction, but have heard will not be as effective without it. I contacted the office several times w/concerns and was told this is normal and to be patient, as results will be seen in 6 mo. From what I have read, says should see some result by now and will see final in 3-6 mo. Should I have ideal results considering I had minimal sagging? Does this mean it did not work?