I'm sorry to hear that you did not send all the requested documents at the same time. Having uploaded some documents, the step would be in review and follow-up documents would not be able to be submitted through the Resolution Center. Please reach out to customer service to let a representative know that you have more documents to upload and request the means to do so.
To contact customer service, please click Contact at the bottom of the PayPal website for available options, or reach out by PM on Facebookor DM on Twitter.
I hope this helps!
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