I sold an item last week and posted it, large letter, 2nd class with proof of posting. The buyer has now contacted me to say they haven't received it and would like a refund. Royal Mail won't look at a claim until 10 working days have passed so do I ask the buyer (who already seems quite irate) to wait until then or should I issue a refund now? Also, do I ask them to open an item not received case?
Despite being a fairly experienced Ebay seller I have never had this before and I'm not completely sure of what to do. Additionally, as it was a large letter I can't track delivery even though standard 2nd class allows you to do so.