I am afraid you did not read properly what you signed.
What happened to ‘due diligence’ by the lawyer then?
What are we doing paying lawyers in Spain if we do not get satisfactory service?
However, if this was one of the panel of lawyers promoted by OE then I can believe: ‘um… er…. not sure. You may get your money back…’ (i.e. ‘not our fault, guv’). 🙄