develop phone list verification service

I would like to create a service on web where my customers : 1. Register to open an account 2. Buy credit using paypal 3. Upload a list with phone numbers to be verified 4. Phone Numbers lists are verified using : [login to view URL] [login to view URL] customer receives an email /download with verified phone list results 7. Implement some business rules: -Processed lists are deleted after 24 hours -Credits expire after 2 months -Minimum purchase: 1000 phone numbers verification Template fro control panel: I will provide it: [login to view URL] Website: One page style web, I will provide content: texts, photos, etc