port relocation

I had lapband surgery in April 2006. By October of 2007 I had lost 240 lbs and the dr. removed all my fluid from my band. Then I gained 100 pounds back. I went back to my dr and tried to get a fill and he was unable to fill it. My port was bad so on May 7, 2010 he put a new port in. Now I am ready for fills and he has tried to fill with x-ray and today tried to fill in office. my port is moving around to much for him to get in it. He also said there is scar tissue since there has now been two surgeries in that area. I am scheduled for another port next Friday-July 9, 2010. He wants to relocate and place a new port in another area. I feel like my band is useless and so ready to start losing weight again. This has been ongoing for the last few months. Has anyone had this kind of problems with getting there port filled.--thanks