Vodafone Pocket Wi-Fi Pro for only $20 @ Big W

I have been seeing alot of Vodafone Pocket Wi-Fi Pro discounts online. So I thought, why not take advantage of it. I went to the Big W store, found a Vodafone Pocket Wi-Fi Pro priced at $79 but when I asked them to scan price to check, scanned came out at $20! I felt lucky so I grabbed the last two stocks. I have been reading great reviews about this powerful device what with it's 3G capability with support to all 3G Networks in AU. They also ome with 3GB of data for VR Network taht you can use for 30 days only. Specifications: Wi-Fi 802.11b/g/n HSPA+/HSPA/UMTS (3G) EDGE/GPRS/GSM(2G), Data Service up to 21.6 Mbps, HSUPA data service up to 5.76 Mbps. MicroSD Slot for up to 32GB, Data and SMS service for 5 hours working with 280 hours stand-by battery life (if Wi-Fi is off). Supports connectivity of 5 Wi-Fi enable devices at the same time.