The Xtra Styles Pak page does contain the warning, twice in fact alongside each Pak description. (see image below)

Why don't you contact Sales and explain your error. I'm sure the 30 day refund policy will apply. Better still, since you own the 2016 version you could upgrade to the UltraPlusPak for $149 and get all the realtracks (2200 of them) plus lots of MIDI supertracks and a couple of thousand MIDI styles, etc.

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Xtra Styles.png (19.08 KB, 40 downloads)

Richard Williams
Sydney
Australia