While not as good as the two recent promos (Spend $50 on anything and get $10 back and Spend $20 on movies/tv and get $5 back) it's still a good deal.
Source: http://www.sonyentertainmentnetwork.com/ca-en/store-credit2
Also there is the flash sale https://store.sonyentertainmentnetwork.com/#!/en-ca/flash-sale/cid=STORE-MSF77008-9_FLASHSALENOV13
Bioshock Infinite for $14 is a good price but other than that I don't see much on the flash sales.
Source: http://www.sonyentertainmentnetwork.com/ca-en/store-credit2
Also there is the flash sale https://store.sonyentertainmentnetwork.com/#!/en-ca/flash-sale/cid=STORE-MSF77008-9_FLASHSALENOV13
Bioshock Infinite for $14 is a good price but other than that I don't see much on the flash sales.