My my purchase could not complete?

It seems as though you have a popup message that says: Contact iTunes Support --> http://www.apple.com/support/itunes/ww

Please do so...

- Selecting your country

Watch the GIF below

set up purchase for 2021 iPad Pro 12.9, sales tax applied,

payment information inserted...........NO completion site showing. Could not complete the purchase, could not buy,.

Earlier call to CS was no help.

Help Apple ID Me (Your Purchase Could Not Be Completed)