hello everyone - just a quick note to say i just upgraded my O2 sim which has the following info.
25 GBP pcm
250GB data
calls and Texts unlimited
also if you are in europe you still get your full data quota - yes 250GB - up to 60 days in the one trip inside europe. with no throttling back.
also i checked and it is ok to use in the phone or in the wifi dongle. or tethering from your phone / wifi dongle to your fire stick, laptop, tablet.
this is just for information if anyone is looking for a monthly contract sim.