Hi there,just paid £55 for a second hand swing which was apparently in perfect condition. However it came today and won't swing?! The music and the lights work but it's just the swinging mechanism that won't work. Looks like its the wiring or something?!I have had one before and it didn't work for the same reason. I know it only works with baby in swing but even then it still doesn't work. Has anyone else had this problem? Is it fixable? Does anyone know how you might be able to fix it? Just been on eBay and seen a lot for a lot less than I paid so very annoyed right now. Thanks for any answers in advance :) x