I'm sorry to hear that. According to PayPal's site, error code 13122 means that the transaction violated PayPal's Use Agreement.
The solution listed here recommends reaching out to PayPal's support team so they can verify which part of the Use Agreement you need to verify compliance to. You can reach out to PayPal's tam here, you can click on Contact Us to log in ag get assistance. I'm sure they will get to the bottom of this for you
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