Realistic WhatsApp & Call Log Edits

I have four mobile screenshots that need subtle but precise manipulation so they pass as genuine captures. Three of them are WhatsApp chats where I want both the timestamps and the message content altered... (Budget: $12 - $30 SGD, Jobs: Adobe Creative Cloud, Adobe Illustrator, Adobe Photoshop, Digital Art, Graphic Design, Image Processing, Photo Editing, Photoshop, Photoshop Design, Visual Design)