I just payed for more data it’s not showing up on my phone

You cannot increase the amount of storage on your phone; it will never have more than it had when you bought it. You probably paid for iCloud storage, which is used for syncing and for backups. But it does not increase the capacity of your phone.

Are we talking about cell phone data or icloud data?

Well, roderick47’s post makes it very clear (at least to me) the data they are asking about. “its not showing up on my phone"