Is one of the possibilities below your problem?
Did you see this message: 'Your account has been disabled in the App Store and iTunes' https://support.apple.com/en-us/HT208856. This link says: "There might be a problem with the payment method that you have on file. When you see the message, don't try to edit any of your account information. Instead, contact Apple Support for help.”
Use the Apple recommended support link above first.
And, if necessary, go here is how to contact iTunes worldwide support via text or chat using this link https://support.apple.com/choose-country-region/itunes After choosing your country, see the heading Tell us how we can help.
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See this document If your Apple ID is locked or disabled https://support.apple.com/en-us/HT204106 "If you or someone else enters your password, security questions, or other account information incorrectly too many times, your Apple ID automatically locks to protect your security and you can't sign in to any Apple services.
If you use security questions with your Apple ID, or if you don't have access to a trusted device or phone number, go to iforgot.apple.com. Then you can unlock your account with your existing password or reset your password. After multiple unsuccessful attempts to unlock your account, your Apple ID will remain locked and you can try again the next day.”
If you are not successful using the above information, Apple support might be able to help you.
Get a call from Apple support to help solve your problem using this
link https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362
Apple ID Support https://support.apple.com/apple-id
Apple ID account security for country-specific and region-specific help https://support.apple.com/en-us/HT204169
Get Support: We’re here to help https://getsupport.apple.com/. Go through the options to find the best support option.
Note that if you are unable to answer your security questions satisfactorily, then Apple Support will be unable to help you with your problem and, thus, contacting support will not be fruitful.
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See If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled https://support.apple.com/en-us/HT204306, especially the section entitled Remove your passcode.
If you don't have a computer as mentioned in Remove your passcode, then "borrow one from a friend, or go to an Apple Retail Store or Apple Authorized Service Provider." Of course the last option usually is not available now.
Later the document says: "If you can't update or restore your device using recovery mode, or you can't use recovery mode because of broken or stuck buttons, contact Apple Support. Then follow the steps to set up service for your iPhone, iPad, or iPod touch."
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See Turn off Activation Lock https://support.apple.com/en-us/HT201441See this heading If you erased your own device.It says: "If you don't sign out of iCloud before you put your device in recovery mode and restore, it might remain in Activation Lock. That means you need to enter the same Apple ID and password that … was used when … [the device was last set up]. You might need to use: If you forgot your Apple ID https://support.apple.com/en-us/HT201354; If you forgot your Apple ID password https://support.apple.com/en-us/HT201487; and If you forgot the answers to your Apple ID security questions https://support.apple.com/en-us/HT201485. Post back if you have trouble removing activation lock. Most will.