I Have What Looks Like A Rope Around My Neck Following Facelift/Necklift

This condition can occur if the drains are taken out too early and there is fluid in the drain tracks that form scar tissue.  At this point, there is likely some scar tissue there and may be hard to remedy.  You could use some steroid injections.  If there is still fluid, I would express them out through a small incision or with a needle and syringe.  Hopefully that is all you need. These tend to resolve though.

it is difficult to say exactly what is the  cause of your issue.  what does your surgeon say?   most issues do get better with time.  if you do need a revision wait at least 6 months from the initial surgery

This area of subcutaneous scar fibrosis causing "banding" in the neck is usually the result of undrained hematoma or seroma. Did you have a drain? Was it removed only after the drainage had diminished? Did you wear an elastic chin strap and limit activities in the first 2 weeks after surgery? Did you have a lot of swelling and bruising after surgery? All of these play a role in any such occurrence, but when I have seen this, re-operation is almost always necessary, but not sooner than 6-12 months after the initial surgery, and only after infrared, ultrasound, and massage therapy has been used (along with time) to soften the scar tissue as it matures on its own. Rarely, steroid injection into the scar fibrosis can help to soften and flatten the areas of "bunching."

Aside from the neck banding, your result on both sides, but more so on the right (as you have indicated), is just not very good. Perhaps you had significantly looser skin and much more deep nasolabial and subcommissural folds pre-op, but regardless of the severity of your pre-op skin laxity, this result should be better. Actually, a fair amount better, IMHO.

So, either way, you likely need a revision facelift/necklift. Please verify the training, experience, and board-certification of your surgeon (American Board of Plastic Surgery is the ONLY ABMS board that certifies real plastic surgeons--there are other ABMS boards that certify doctors who perform cosmetic operations without complete plastic surgical training, as well as a few "bogus" boards). If you need to, obtain several other consultations over the next few months with experienced ABPS-certified plastic surgeons who do lots of facelift surgery. This will help you decide if what your own doctor is saying is accurate and realistic. Best wishes!