why wont it let me buy more i cloud storage

Hey there and welcome to Apple Support Communities omar2316,

We can certainly understand your concern and see you came to us from the article iCloud+ plans and pricing.

We recommend checking out these steps for more information on what to do when your Apple ID is disabled.

" If your Apple ID is locked or disabled

If you or someone else enters your password or other account information incorrectly too many times, learn how to regain access to your account. 

If your account has been disabled for security reasons

If you see one of the following messages, your Apple ID automatically locked to protect your security and you can't sign in to any Apple services:

• “This Apple ID has been disabled for security reasons”
• "You can't sign in because your account was disabled for security reasons"
• "This Apple ID has been locked for security reasons"

You need to reset your password to regain access. Learn how to reset your password. 

If your account has been disabled in the App Store and iTunes Store

If you see a message that says your account has been disabled in the App Store and iTunes Store, contact Apple Support for help. "

For additional information, check out this link: If your Apple ID is locked or disabled - Apple Support

Kindest regards!