Filter Internet Tariff Custom Pricing

I currently have quite a few internet tariff plans set up that have static pricing assigned to them. There are a few clients we have that use that tariff but pay a different rate so when that service was added we just changed the tariff price.
Now we want to filter or search through all the pricing so we can find the ones that have the odd price assigned to the customer.
I went through the customers list filters and it doesn’t have the option to include tariff price and I can’t seem to find another way of displaying it.

I think now it’s possible to add to customer table only Internet service name that is assigned to client and start date. Maybe we can add the price of internet services there as well, will this help ?

That would be great. That would definitely solve what we are looking to do.