Thanks forupdating me on the Wakelocks, I didn't realise that time awake was the key!
As I mentioned earlier I done all that I was advised re google services & play store, left my phone overnight (wi-fi off, mobile data off, airplane mode on, power save mode on, brightness @ 10%) at full charge of 100%, woke up this morning and it's down to 47%!!!
Checked GSAM and 95.3% battery drain was on Android system, 1063 wakelocks but phone was only awake 2m 31s!
Google services listed as being awake for 1m19s.
I really don't know what else to do!!!