GDPR doesn't work like that
Whilst you can request your personal information be deleted under GDPR, companies do not have to blindly comply with your request - if they have a reason to hold it, for historical sales records, fraud prevention etc, then they're perfectly entitled to and there's nothing you can do about it.
You can still amend your given consent (for marketing purposes etc), and they are still culpable for protecting the data you hold on them...but they can retain your data for as long a they wish / are required to do so.
Biting the hand that feeds IT
