South Africa Mobile Numbers for Survey

I'm looking for 200 mobile phone numbers from South Africa for the purpose of survey research. The ideal candidate for this project should have experience in data collection and can ensure the numbers are valid and not duplicates.

Requirements:
- Provide the owners name for each number
- Verify that each number is valid
- Ensure numbers are not duplicates

Skills:
- Data collection
- Attention to detail
- Ability to verify data