Fixing Sleep earbuds in Amman

hello, does anyone know a good shop where they have experience fixing earbuds? I have a Bose Sleepbuds pair where the left one has suddenly become extra quiet, tried all solutions online but no use. Its warranty expired and it was bought from DNA anyways.

I suspect the issue is in the inside wiring and might need someone good at soldering to fix it.

Please help, they're expensive and all alternatives are also expensive if we're going for a new pair..