Sabadell Woes

[MrMedia]

I am trying to set up Sabadell on another device and for the life of my I've no idea what the 'id' could be. I've tried everything. Could someone who is with Sabadell give me an idea of what it would look like? Digits? Letters. Names? Where on the account is it? I've an old dying iPad where it works and a new a pad fresh iPad where it needs to be!
Many thanks all!

[Lincoln45]

Is it by any chance your N.I.E or Residence card

[stowie39]

It's either your passport number or nie

[MrMedia]

Well, with a sabadell person on chat I cracked it. It was my expired passport number! I'd been using my new passport number! Doh!