Felix Mobile: $8 Cashback on $15 50GB, $10 Cashback on $20 Unlimited Data Mobile Plan @ TopCashback AU

Original deal

Prepaid mobile cashback deals have dried up, again. FELIX50 also applies to the $12.50 25GB plan but with $6 cashback, might as well get the 50GB one for 50c more after cashback. Activate within 30 days for cashback. Can the code be reused when you port out and back in?