"Loss of Records and treatment"

Way back in August I came to Moorefields Hospital for 2 days and was pleased that they found blood at the back of my left eye and advised me to take asprin Because in the past I had a brain operation (to try to stop my epilepsy) at Maudsley Hospital I was told I would be seeing a Neurological specialist and was told to stay by the phone for 2 days as they would be getting me an appointment ASAP to have a series of tests. As you may guess the phone call never came, so I phoned the hospital "25 times" over 2 days to get hold of the person who was dealing with my case - only to find out she was on holiday and they had lost all trace of my records. I came back to Moorfields again to see another person in August and was told I would be seeing someone in the Neurology section in October after I getting back from my holiday in September 2013. When we arrived back from holiday I received a letter telling me I would not be seeing anyone until February 2014. I feel very let down as something serious could have happened.!! I do hope this does not happen to other patients!! How do you keep your records??