I'm not totally sure. I'll try with another account.
edit: Created a new account but it's the same. I tried using the API in a python script but it also says 'You exceeded your current quota'. Probably they linked those 2 accounts together.
You probably used the same phone number. When you register another free account on that number, they show a popup saying that since that number was already used, you don't get more free tokens.
