Righty then, I had a completely different problem from the original one, when I pressed the key unlock button the car would unlock then lock immediately after, I basically had to do split second timing to pull the door handle and after several attempts and setting the alarm off at 4am yesterday morning I eventually got in, I thought the first problem had gone since it never locked itself afterwards, until 20 minutes into my journey and doing 60 down the motorway, to say it made me jump is an understatement, anyway, I've had the battery disconnected overnight and ,fingers crossed, its unlocked normally a few times and hopefully the problems been solved. 
