I travel from Malaga on BA 4-6 times a year, unfortunately it’s a problem that the only lounge in the Airport which is operated by AENA the Spanish Airport Authority. Is closed for the departure of the last or first BA service of the day.
If you are travelling in the next few weeks, in the past during the summer peak the lounge opening time has been extended by two hours. However I have seen no notice on the AENA site or One world for this year’s arrangement so far.
In terms of “service recovery” unfortunately it’s zilch. BA will tell you the opening hours are clearly advertised.
There are no BA staff in Malaga, everything is handled by Iberia. Unfortunately as with most things BA these days, the service levels at Malaga have dropped considerably over the past 18 months. Most departures have no dedicated CE check in. BA will not pay for security fast track at Malaga either.