Sun visors

[ABruce]

Hi, first timer here.  Wondering if anyone has experience with broken sun visors on a 2018 A3 Cabriolet.  A while back the drivers side visor broke off, at the pivot end, not the clip, and now the passenger side visor has done the same.  Is this known as a common issue or have I just been unlucky?  I have just ordered a new pair from my local dealer for an eye watering £291 but have opted to try and fit them myself rather than pay the further £90 labour.  Does anyone here have experience with fitting these and could maybe offer some tips or direct me to a video?  I've found various things on YouTube but not for this model.

Thanks all.   Bruce