I recently made a backup of my iPhone before erasing it and taking it to the apple store for repair, upon reconnecting it to my macbook to do a restore I realised that none of my old backups were there, not a single one from the past couple of years. The only back up available was from a few minutes ago that I had connected the phone for a restore. Is this something that you have experienced? Can the lost backups be recovered? I have checked the ones that are there in the backup folder, it was only the recent ones from after apple store visit, how could the older ones have just disappeared like that?