1.5 years post op - is it okay to let the same surgeon perform a revision to lumpiness under the chin area? (Photos)

I had a neck lift a year and a half ago. Since then, I’ve been working with the Plastic Surgeon that performed the neck Cliff to fix the area under my chin and jawbone that hasn’t healed correctly. We’ve tried RF micro, needling, ultra electronic lasers, and various massages and face care products.. Nothing has worked, and now the surgeon says they will go back in and do a revision just under the chin and jaw and that they can probably fix about 90% of the lumpiness that is there. The plan is to maybe do a little Lipo, and maybe cut a scar band or two. . The revision is planned for the end of this month in May. So I’d let the surgeon go in for no charge and fix it??