Item returned - No refund issued

[clarkey501]

Hi.
I have asked eBay to intervene and explained that I have returned a faulty item (I have proof of posting). The seller said in an email Via eBay messages, that they would refund the amount paid. I returned the item but no refund was issued and the seller didn’t respond to my last email.
I asked eBay to intervene. They said they found in my favour and would refund on the return of the item.
Problem is, I’ve already returned it over a week before I opened a dispute. I don’t have it, the seller does.
Who do I contact to tell them I can’t carry out their instruction as it’s already been returned? I’ve tried a ‘return email’ but no joy.
Any advice would be appreciated.
Thanks.

[arkwebus]

As @ruby*tuesday advises you if you used 1st or 2nd class for anything over a large letter there will be a 16-digit number which will show scanned at doorstep.  That will do for eBay. 

However you do need to have opened a case.  The seller should have sent a label to return which has tracking which updates eBay's system.  

The usual way is that you must open a case and before returning.  You do need now to input the tracking or 16-digit number.  If you really have not got that then I am afraid [seriously] that nothing can or will be done.  The fact that the seller "agreed" to refund does not apply. 

"Proof of delivery by Royal Mail" or no refund through eBay.  The seller will damage his account if he were to refund without using eBay system

@clarkey501 

[ruby*tuesday]

If a RM Parcel it should have a 16 Digit Reference Number on your Proof of Postage. Is a Doorstep Scan..Ebay accept it as long as Confirms Delivered.

Add that number to the Case.

[ruby*tuesday]

You add the Tracking Number into the Returns Case. Once Delivery or Attempted Delivery is Confirmed you will Receive your Refund.

[clarkey501]

ruby*tuesday - I don't have a tracking number but do have a proof of posting receipt. Hindsight a wonderful thing on my part. Is this a matter of lose my money and lesson learned as I can't do as eBay ask?

[clarkey501]

Thank you people!
I do have that reference number on the proof of posting receipt.
Thanks again for your advice.

[clarkey501]

It won’t accept the ref number.
Think I may have to write this one off. Really annoying as the receipt actually has his house number and postcode immediately under the ref number also!
Oh well, live and learn.
Thanks for your advice guys. Shame I can’t actually show this to someone at eBay. Just hate the feeling of being ‘had over’.
Thanks again and stay safe.