My App Store can’t connect what’s the problem

"If you can't connect to the App Store, iTunes Store, or other Apple services" click here --> https://support.apple.com/HT201400

- If none of the suggestions work, try the last one: "If you’ve tried all of the above steps and you still can’t connect, contact Apple Support."

I have been through all the steps to get App Store connected on Mac, none work.

I've tried Apple support for two days, about five times at different times of the day, and always get the

"We’re sorry, Apple Support is currently experiencing high demand and has limited availability. Please try again later for more options"

Message.

Have you tried iTunes Support?

iTunes Support – world wide   -

Apple Support schedule phone call     -

Billings and Subscriptions   -

If necessary, try Twitter

https://twitter.com/AppleSupport.   -