If we add another SIM to the same account... Do we still get the 50$ referal each?
No 50$ referral on the same account. BUT you can open another Fizz account with another email and use your reference code on the new (second account) to get 2 times 50$
Forgot to mention that any Bonus' in one account will be available to all lines. So if you are level 8 and have all three slots available and assigned rebates, then they cannot be used on the second account you just created.