Ok, I didn't realise that they did a 30-day return period; however it has already expired.
I bought a double bass in July which came with a normal fixed bridge. Now I've always liked the idea of an adjustable bridge, so I bought this Gewa one at the same time.
I asked Thomann if they could fit the adjustable bridge for me, but it was not a service they offered.
Since I am not a woodworker by any means, my plan was to take the bass and the adjustable bridge to a local luthier and have it professionally installed.
However, I also decided that I had nothing to lose by having a go at filing down the existing fixed bridge myself.
I (somehow) ended up doing an ok job. In fact, the action is now pretty sweet, just how I want it.
I then thought it best to wait till I'd gigged the bass a few times to make sure I really was happy - and now I have decided that I am.
Hence the adjustable bridge remained untouched, and is now for sale here!