Can i replace my current JioFiber router (jcow407) with jco4032 as my current router is having problems?

My current Jio router (jcow407) is giving me problem since day 1 like

•Fluctuating internet speeds
•Unable to make calls through jio call as registration status on admin page gets sometimes ❌ or ✅ (don’t know how it get)
•Issues with DMS server as it’s also displaying the current status is ❌ on admin page

Need suggestions

No, you will not get a router choice. You can call customer care with the problem. They will come and solve it or if required, replace the router.

My jio router is now 5 years old, what all I can do to get this router changed with the newer one?