African Sportsbooks Email Extraction

I need a reliable scraping solution that pulls every publicly-available customer e-mail address from the following sportsbooks: bet9ja, BetWinner, Sunbet, Nairabet, Melbet and Bet King. The final list must be delivered as a clean TXT file—one address per line, de-duplicated and free of formatting noise.

Please build whatever combination of Python, Selenium, BeautifulSoup, Scrapy or in-house tooling you prefer as long as the method is repeatable. I will ask for a short proof-of-concept run (100–200 addresses) before we move to a full scrape so I can verify data quality and coverage.

Acceptance criteria
• All six brands above crawled end-to-end
• TXT file delivered, UTF-8 encoded, no duplicates
• Brief note describing the steps or script so the process can be rerun later

If you already have partial databases from these sites, mention that in your proposal as it could accelerate delivery.