It wouldn't take that long to do it yourself. Once the trim is off you can see the bolts that hold it on. I doubt anything would need adjusting. The only real comfort with having a dealer do it is if they damage the trim at least they'll replace it. I think it's about £40 new. Still £133 is a bit steep just to replace a
badge and fitting. I'd have bought the
badge and taken it to a local garage if I didn't feel confident in doing it or see if a local member could sort it out for a pint or 2
PS: Sorry turbin, your not in the UK are you?. I doubt you have many local forum members near