Cellular at Sea and IDP

I have had IDP on my account but I got a pay-per-use text when Cellular at Sea came on I know it should be included in the $20 a day IDP. When I made it to my first port it shows pay-per-use data in my account. Is this how it will show? There is no option to view unbilled charges. I am assuming this will self correct when the bill comes out? I'm on the Norwegian Joy which is included in the plan.