Hello @aramak70,
Welcome to PayPal Community Forum and thank you for posting!
I understand that you're worried about the double charge on your PayPal Credit. In this situation, you can contact the merchant and can ask them to cancel one of the payments and request a refund as there were 2 payments processed at the same time. You may contact PayPal credit through the number mentioned in the last answer under "contact us" for further assistance. Here's a link to the FAQ page showing that info.
I hope this helps,
Ayesha
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