PayPal Credit Refund, do i need to move Current Balance, back into Available Credit ?

[Luke1993]

I preordered a graphics card online, and bought it using Paypal Credit. 

2 weeks passed and the GPU order was still waiting on stock, so i cancelled the preorder.

I now have the refunded 600 pounds in my 'Current Balance'. Do i need to 'Make A Payment' and move the refunded money back into 'Available Credit' ?

I'm new to Paypal Credit and I don't want to be charged for anything.