Twitter stores tweets 2 ways: live and archive. Tweetdeleter.com shows latest 3200 tweets. You should upload archive to access your old tweets! Go to twitter.com and open “Settings and privacy” from menu! Choose “Request your archive”! Link will be sent to your email. Open email in few minutes. In email you will receive link. Open link! Download archive! Do not open the archive zip folder! Go to tweetdeleter.com and click “Upload archive” menu! Click the button and search for your zip archive folder in downloads folder! Uploading may take few minutes and processing may take 30 minutes. After that, all is ready for deleting tweets!