Hi johannhh21,
Thank you for contacting the PayPal Community Forum, and welcome as a new member!
I am sorry to hear you are unable to dispute the transaction on your PayPal account. If you are still unable to open a dispute, please reach out to our Customer Support team. You can contact us via Facebook - https://www facebook.com/PayPal/, Twitter - @AskPayPal., chat or phone and we would be happy to assist.
- Siobhan
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