Refund shown as processed in PayPal summary, but not yet showing against my PayPal credit balance

Description

Yesterday I received an email from PayPal letting me know I had received a refund from the bender and when I log into my PayPal account this shows as successful processed with a green +£164.00 however the refunded balance is still not showing on my PayPal credit balance which is what I had used to pay. It’s now been 24 hours since the refund showed a process in my account yet the PayPal credit balance is still not appearing as updated to reflect the same. Does anyone know how long this takes normally ?