My Sony phone is using data hourly during the night, so it's only lasting two week out of a month. Deleted everything possible any suggestions?
you should be able to check in your phone's settings to see what exactly is using your data.
Hourly doesn't sound too frequent (my phone syncs emails every 15 minutes). But only very small amounts of data.
Your problem may be if you have WiFi available and expecting your phone to use that but instead it uses mobile data.
If this is the case, again check your settings. It may be that your phone once in standby sends WiFi to sleep ( battery saving measure).
On my own phone (Android) this is Settings > WiFi > (touch the three little dots) > Advanced > "Keep WiFi on during sleep".
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