I'm having the same problem today. I printed an $89 internal UPS label that would not print any custom forms with it and had diamond symbols in the receiver's address replacing a few letters when their info was typed in correctly. There is no way to cancel the label and after hours on the phone trying I'm beyond frustrated. When I use the void from the email receipt option I only get an error message and no one in PayPal support can help with the problem.
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