https://community.o2.co.uk/t5/Apple/iPad-SIM-not-recognised/m-p/1159622#M161095 Sounds like regular account screw up.<BR />You'll need customer service to fix it for you Tue, 09 Oct 2018 13:02:22 GMT MI5 2018-10-09T13:02:22Z https://community.o2.co.uk/t5/Apple/iPad-SIM-not-recognised/m-p/1159617#M161094 <P>I have an ipad Mini 4 with a PAYG data SIM. I have been trying unsuccessfully to upgrade my monthly top up plan from 2 Gb to 3 Gb. I was today sent a new sim with a new number. It was preloaded with 3Gb &nbsp;by Customer Services as a goodwill gesture, as I have spent weeks trying to sort this. The new SIM is not recognised and will not register. If I go to Settings/General/About, the new Mobile Data number is there, but when I try to ugrade my plan in Manage Mobile Data, it is showing the old SIM number. I have tried logging&nbsp;out&nbsp;and&nbsp;in and reset Network Settings to no avail and have spent 45 minutes on the phone to CS without solving this. Is it a SIM fault?</P> Tue, 09 Oct 2018 12:27:01 GMT https://community.o2.co.uk/t5/Apple/iPad-SIM-not-recognised/m-p/1159617#M161094 Roger206 2018-10-09T12:27:01Z https://community.o2.co.uk/t5/Apple/iPad-SIM-not-recognised/m-p/1159622#M161095 Sounds like regular account screw up.<BR />You'll need customer service to fix it for you Tue, 09 Oct 2018 13:02:22 GMT https://community.o2.co.uk/t5/Apple/iPad-SIM-not-recognised/m-p/1159622#M161095 MI5 2018-10-09T13:02:22Z https://community.o2.co.uk/t5/Apple/iPad-SIM-not-recognised/m-p/1159946#M161103 <P>Hi&nbsp;<a href="https://community.o2.co.uk/t5/user/viewprofilepage/user-id/1198698">@Roger206</a>, let us know how you're getting on with this and if you've made any progress with Customer Service since you last posted?</P> Wed, 10 Oct 2018 14:30:22 GMT https://community.o2.co.uk/t5/Apple/iPad-SIM-not-recognised/m-p/1159946#M161103 Marjo 2018-10-10T14:30:22Z