We are discussing this in a different thread but for an Indie that is expensive. VW dealers charge £375 for the same thing.
The cost can be reduced significantly by doing the work yourself, or asking them to use cheaper parts.
For example, you don't need dealer spark plugs. NGK BKR7EIX are a fraction of the cost and the engine actually runs better on those anyway. They don't last as long, but you can change them 3 times for the price of 1 set of dealer ones!
Cabin filter - does it need doing? Inspect yours and if it's not choked with leaves, twigs, rats nests, dead birds and grit, don't change it.
Again with the spark plugs, if they're not worn out, don't change them. The only reason VW specify them is to reduce misfires, which is part of EU4 emissions controls. If they're not fouled and the gap is still in tolerance, save your cash.
All I would do is oil, oil filter, fuel filter, air filter and plugs - if they actually need doing. You can do all that yourself for way less money. Just depends how badly you want a stamp in the book.
And £31.50 for the air filter is ridiculous. Genuine ones from the dealer are £23!