If the pension has yet to be restarted then call the British Consulate in Malaga and ask to talk to the pension, benefit and healthcare team - they will be able to advise how to get it re-started quickly.

If you mother's sickness benefit has stopped, check that she told Spain about the time worked in the UK when she applied for it. If she did tell them then she needs to go to INEM to apply for the over-52s subsidio - for this she will need an E301 from the HMRC. Again, the team in the Malaga consulate can help.

In fact, tell her to give them a call anyway. They will find out exactly what her situation is and be able to advise accordingly.