The previous deal is now outdated as David Jones are not offering a $10 Welcome Reward anymore on signup.
In addition to their changes in their loyalty program, you will now earn a different birthday reward depending on how much you spend with them on an annually basis.
To add on to that, you can also now earn a flat standard rate of 1 Qantas Point per $1 spent according to that post.
The new tiers for each Birthday Reward is as followed.
BRONZE - Annual Spend $0-$1,999: $10 Birthday Reward
SILVER - Annual Spend $2,000-$4,999: $20 Birthday Reward
GOLD - Annual Spend $5,000 and above: $30 Birthday Reward
Personally, not a fan of this tiering system, but as businesses continue to modernise, they will change what they need to.
If gold is $30, you might want to fix the title.