Have you finished the process of accounts deletion or data removal? How long did it take?
Was it tiresome going through every “data protection officer” mail of companies while requesting for data removal?
How have you monitored the progress and checked if they removed your data?
Are you strict with new account creations nowadays?
Usually I just send an email template asking them to delete my data per the GDPR (I’m an EU citizen). I’m not sure if you can force them to delete anything if they don’t have to by law, but I guess asking is free.