Sadly that's par for the course these days. And that's not a bad price for Malaga when you compare it in proportion with the 'good old days' before low cost carriers.

If something seems a bargain, it usually isn't and it's IMPERATIVE to read the small print! Sorry you feel let down.

As this is a general complaint, mods, perhaps it should be moved to the flights section?

Moved. Our 'cheap' flights to Malaga were £49.99 one way each, then £29.99 return each. I got my return flight free due to Jet2 points & the total came to GBP 320.74

Must admit, it is a bit misleading but I know the extras usually cost more than the flight!
2 x 20k cases @ £50 each is expensive but sometimes it still works out cheaper with low cost carriers.
£20 per kilo excess baggage is another of my concerns.
It all spoils the fun of shopping when on holiday because I can't bring anything back - unless it is weightless!!!!