Teitter wanted my phone number once, even by locking my account and asking me for my phone number to unlock it. It felt like blackmail and I threatened Twitter

Teitter wanted my phone number once, even by locking my account and asking me for my phone number to unlock it. It felt like blackmail and I threatened Twitter with a GDPR request, not only requesting my data but also the algorithms used for automated decision making. As soon as my account got restored I let their DPO know that I don't insist on the fulfillment of the GDPR request any more. And that I will follow through if Twitter pulls off this kind of blackmail again on me. Haven't had this issue any more.