In app purchase advertised at one price (3.99) but attempts to charge 6.99
I’ve just purchased N2 and this morning purchased Acoustic 1 at £3.99 as stated on screen.
Having tried the various presets I returned to purchase Acoustic 2 which is also showing as £3.99.
However at the final click to accept the purchase I noticed that it was being charged at £6.99.
Is this correct? Or is there a problem?