Hello mtwmaw,
It sounds like you're needing some help with verifying your PayPal for the iTunes Store. We will be happy to help.
Let's begin by having a look at the following article as it provides information regarding payment methods available in your country: Payment methods that you can use with your Apple ID
If that doesn't help, then we recommend that you sign into the Apple ID website and select Edit in the Payment & Shipping section. Make sure the info matches with your PayPal account there and save any changes you make. Try again once that’s complete.
If the issue continues, sign out of iCloud on your device, restart, and sign back in. Sign out of iCloud on your iPhone, iPad, iPod touch, Apple TV, or Mac
If issues continue. reach out to PayPal Support after taking these steps. They should be able to help you with verifying your account for use with the iTunes Store as well.
Cheers!