Hello again ~ Read through this information:
View and remove your devices that are associated with Apple ID purchases - Apple Support*
*More about associated devices
You can have ten devices (no more than five computers) associated with your Apple ID for purchases at one time.
When you try to associate a device that was previously associated, you might notice a message that says, "This device is associated with another Apple ID. You cannot associate this device with another Apple ID for [number] days." You might need to wait up to 90 days to associate the device with a different Apple ID.
This list of associated devices is not the same as the list of devices that you're currently signed in to with your Apple ID. You can find out where you're signed in on your Apple ID account page.
These are the phone numbers that are Apple Support and you can be sure these are the correct contact numbers:
How to Contact Us - Apple
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