I purchased a mulled wine refill for Christmas and I put it in on the 12th December only to be so disappointed that on the 25th December it had actually ran out when it clearly started up to 70 days. I know it says upto 70 days which is great but for me to have my spray set to every 30 mins I think for it to last only 14 days is totally unacceptable. I look forward to an explanation for this please Regard Michelle Clegg