You can't do that, you have to go for the full £24.99. The £9.99 upgrade is from PS4 Director's Cut to PS5 Director's Cut. Likewise, if you just wanted the DLC without the upgrades, you wouldn't be able to get that either.How do you upgrade from the PS4 version to the PS5 version of the standalone game? The only options I could see were to buy the Director's Cut upgrade for £24.99. If you already own the standard PS4 game, how do you get just the PS5 upgrade for £9.99?