I changed the fitting on mine as I had similar problems - but not much help to you !
![[Linked Image]](https://tm-img.com/images/2020/04/28/20200428_133038.jpg)
I have known people to call in at their local
'Autowindscreens' or similar and , for the price of a pint, they will re-affix using their much stronger,industrial adhesive.
Maybe worth a try......?
James