Horn will not work

My horn does not work. I checked to see if there were Fuses associated to it and the diagram does not indicated the horn has any. I recently had the front bumper replaced due to small fender-bender. Could the repair shop not have connected the horn? Before time consumer visits to the shop I would prefer to check the easy options first, hence Fuses.

If it is a fuse issue, what #? The 650i has fuse boxes in the trunk and glove box.

I will gladly donate but if the only option is a repair shop then not sure warranted.

Thanks for any advise.