hiya mate, i did something simular to mine.
Best thing to do (trust me i tried everything) is to get a new seat. But as i found out your problems don't stop there.
Your pretentioner will probs have blow, you notice the plastic on your seatbelt bit to be goosed, also your airbag and service light may be on, your gonna have to pay to get that reset, thats what im working on now.
hows the wheel / tyre?