Does anyone know if the store has a phone number to call? Or is it all behind the QR code

From what I saw only through the QR you can get an appointment to enter. I arrived at 7:40 am and I had the 92 card. About 150 people enter per shift, so at 10am when they open I could enter. Important: you cannot reserve a time slot, depending on the time you arrive, they assign you what time you enter

You still have to book in advance, I say this from my own experience

You can contact them on their website, they have an email there since apparently they don't have a phone