Saw this offer at Westpac.
Must remain with AGL for 1 month to get the $150 card as well as the sign up offer of $250 credit. $125 credit applies for each Electricity and Gas connection.
Existing Customers can also get $50 card by changing their plan.
NSW: $125 for gas, $125 for electricity
VIC/QLD: $75 for gas, $75 for electricity
WA/SA: No credit, just the gift card
I'm not convinced it'll be honoured if it's only meant to be for Westpac staff…