4 months post op Soft Thread Lift. Would this procedure improve my jowls and marionette lines? (photos)

I had this procedure in February, 2 threads in each side. I found it to be extremely painful, and am very disappointed with the results. I wanted to improve the appearance of my jowls and the beginnings of marionette lines, but feel it has no effect whatsoever. I have spoken to my Doctor, who said to give it time, I am booked in to see him again in a couple of weeks. I would like at least a partial refund of my £1000 paid, do the Doctors think that this is a reasonable request?