20% off Store Wide @ Nike Store (in-Store Only) (Blacktown, Possibly Nationwide?)

Received an email for 20% off storewide at my local Nike Store in Blacktown, unsure if this is a localized sale or if it is nationwide for all Nike stores inside.

Deal:

We’re giving you the opportunity to receive 20% off in-store from Boxing Day, Saturday 26th December to Sunday 3rd January.

Nike has the latest range of authentic footwear, apparel, equipment and accessories for all of your running and training needs.

• Some exclusions may apply, ask in-store for full details. Offer valid from Saturday 26th December 2015 to Sunday 3rd January 2016. Redeemable at Nike Blacktown.