Just noticed a small increased in the cashback for the 30Days/40Gb plan. After cashback it comes to $1.40 for 40Gb data for 1 month. Cashrewards is valid for "purchase of new service", but Shopback states "Must be a new Catch Connect customer to receive cashback".
*Edit: I have just received multiple cashbacks from Shopback using email accounts that I have previously used to buy Catch Connect plans (ie. Not a new Catch Connect customer, but activated new numbers, so "purchase a new service")
Happy New Year! :-)!