I'd consider going to another doctor for a 2nd opinion (not switching doctors, just an opinion). The reason: if your band just disintigrated, or if they accidentally burst your band with too much fill, or created a leak they may be trying to wait till you cannot point the finger at them. If that's happened you need to know so you can have it replaced/repaired (I really like the fix a flat, didn't even know that existed). Accidents happen, no one is perfect - you can still use your regular doctor, just you need to know what you are facing and you can low-play how the problem occurred to maybe get them to be more accommodating regarding how to go forward. If that band is burst, no amount of fill is ever going to fill it up again. I know 2 people that happened to. They have no idea why the sacs burst, they just did after a few years.