G203 Logitech mouse for spares/repairs (Westbury Fields BS9)

G203 Logitech mouse with cable with USB connector. It has started to double click even when I only do a single click. Searching on the internet it says that it might be possible to repair this be either replacing the microswitch or bending its spring. This is beyond my capbilities, so if anyone has any idea what this means or want to try a repair, this is the one for you!! This is actually a gaming mouse which has a few extra buttons (?) that can be used in gaming. Or it can be used as a standard mouse, if you can repair the microswitch.