If you do click on 'Don't Allow', the screen you see in the screenshot next to it will follow. On this screen, the only option is 'Allow'. You can still ignore it by clicking on the arrow in the top right 'back', but you will have to 'try your best'.
Lourdes Turrecha describes it beautifully in her article on Medium:
These are examples of dark patterns, elements of product design intended fax lists to make users do things they might not want to do, but that benefit the business, not the users.
Jake Moore, cyber security specialist at ESET, calls this a ' pay to play scenario '. If you don't give access to your contacts, you can't fully use the app. And once you do, they have your name, phone number, email, photos and sometimes even your school or work.
The question is whether this is even allowed under the GDPR. “ Crucially, the app does not take into account privacy by design ,” writes data privacy expert Pia Tesdorf. “ It's ok to share your data, but it should be opt-in. That's what GDPR is about .”