In the signup process they force you to provide a phone number and from then on you will get hundreds of calls from companies trying to sell their financial services to you. They call them "partners" but these are only companies to which investing.com has sold you personal data. If you delete your account investing.com will still keep your data although this is a violation of EU's GDPR rules and you can easily verify this by trying to sign up once more: the signup with the same phone number will fail as when you delete your account they will not delete your personal data from their databases. If you contact them to ask your personal data be deleted they will simply ignore your request. I'm investigating how to report their violations of GDPR rules to UE authorities.