How long should I wait for an agreed refund before messaging the seller again? I bought some curtains as a buy it now. However the seller then (the following day) listed another pair (same design) in a different size on auction. I emailed the seller explaining that I would prefer the bigger pair that she has on auction. She agreed to cancel the original sale and refund me for the original pair (so I could bid for the bigger pair) but that was 24 hours ago and the sale still hasn't been cancelled/refund processed. Any advice?