paypal question

Hello,

so one guy open a dispute for a payment in paypal worth of 50$, he only spent 30$ in my website tho

the case is NOT escalated to paypal yet, he sent me a message in Paypal Resolution center and i replied back

what will happen to the case if he doesnt reply back? its been like 3-4 days now he hasnt replied back
i dont want to escalate the case to paypal

thank you