What is Apple's U.K returns address for faulty items?

I had a replacement pair of air pod pro's sent to me and had to return the faulty ones with a pre-paid UPS label. I filled in the details at UPS and it was collected.

I then printed off the information for the collection etc as advised on UPS's website. But it turns out that the print out contains barely any information. It doesn't show the address the return was going to.

It now shows on the UPS tracker simply as "delivered. Left at dock" somewhere in Lutterworth despite the address label definitely mentioning Cork in Ireland.

On Apple's website, it still shows as them waiting for the return under the support section and UPS and pretty useless and can't seem to answer a simple question as to whether wherever this "dock" is, is actually Apple's drop off point?

I'm getting very annoyed with the whole thing as obviously, Apple has a hold on my credit card for the cost of the replacements until they receive them back. Thanks for any help.