Band Repositioning

I am going to get a fill in two weeks after being completely unfilled for two months due to a dialated pouch. If I am still swollen when I go for my fill, I will have to get surgery to get it repositioned. My question is what is the process of repositioning a band? How long is the recovery time involved? I ask because I work full time and I can't be off work for a long time. Does anyone know how much this costs? I am not sure if my insurance will cover it because I know they don't cover any type of weight loss surgery, so I may have to finance it. I have also been reading about people that are going from 4cc bands to 10cc bands. Will that help keep you from slipping to go to a bigger band? I don't understand that part. Thanks in advance for your help!