Cancelled my bank account was issued a refund but it's gone to the bank account i cancelled?

[SmallTownGirl]

Hello,

So i made a purchase was faulty, sent back and requested a refund. 

But unfortunately in the last few days i had cancelled my bank account which the card i had purchased the product with was linked too 

So i'm not really sure what to do, do i contact my old bank or will the money eventually come to my paypal balance, the seller has said that it's

gone through on there end as well? 

Thanks.