Currency does not change using Cloudflare Business using Nestify managed WordPress

I am having an issue with Caching, My currency does not change every time, My customers from USA is seeing currency in INR, It all started when I shifted to new managed hosting in old Namecheap hosting it was working perfectly, They use Cloudflare Business CDN, When I asked to disable it for they said it’s not possible,

https://prnt.sc/TfHEGIg9l23I

There is a feature to exclude caching is specific pages , its also not working

this is their reply: Based on the script, cookie, or path of what the plugin uses, your developer should be able to help you with what needs to be excluded.

Please help me fix the issue , I am not able to disable cloudflare pluge cache .
I enabled caching plugin button , still it did not working