My 2 dell mouse are faulty

I have two Dal mouse which are faulty 

1. Serial number: CN-0GXCWV-LO300-354-07BR

2. Serial number: CN-065K5F-LO300-44Q-016J

Mouse 1 have issue in left click, it is not working. I need to quick too much hard in order to get the button work. 

Mouse to has issue in scrolling and also in button. 

I need to replace this mouse.

Best Regards,

Dhiren Narola