Smartphone Personal Data Recovery

I need help retrieving personal files that were lost on a smartphone. The handset powers on but the data I am after—photos, messages, and a few documents—no longer shows up in the usual storage folders... (Budget: ₹1500 - ₹12500 INR, Jobs: Data Analysis, Data Backup, Data Extraction, Data Management, Mobile App Development, Technical Documentation, Technical Support, Troubleshooting)