Did you do it through an ebay return or dispute?.
If you did and you do not get your refund within 4 days you need to go back to the dispute and escalate to ebay.
You must have the tracking of the return on the item
If the postage was from ebay Packlink then it would be on automatically
All problems are done through ebay.
If you did not and are withint 30 days then open it now.
PUt the tracking onto the dispute.
Come back if you need more help
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We are just ordinary members trying to help.