Tickets Portugal

Greetings people, so...I discovered very recently Ethel Cain and pretty swiftly fell in love with her work, next thing I know, she's coming to my country (Portugal), I go to Fever hoping there might be some tickets left, and their all gone. So now...im kinda wondering if the tickets that are sold out were the ones from the pre-sale or from the main sale; and since Fever allowed me to subscribe to a waiting list for when there will be tickets for sale again I began to question, will there be another wave of tickets for sale or....truly their all gone and the waiting list I'm on, is for when she comes back to Portugal?

Hope some of you can enlighten and aid me with all this doubt and existencial dread.

Thank you all in advance!!