That is a myth.
All active codes will give free unlimited supercharging, not just your first 5 referrals. I am well over the first 5 and the app states that people will still get free unlimited supercharging (see image below), I have personally confirmed this with Tesla, & I have confirmed this with people that have used my code.
You can see in the bottom portion of my image it initially says "5 friends". Once the secret levels are unlocked, in the top portion, it says "5 more friends". So not to worry. Anyone who uses a valid link will receive free unlimited supercharging.
Thanks Erik
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