Image Vectorization to AI Format

I have a raster image that I need converted into a clean, fully-scalable vector. The final file must be delivered in Adobe Illustrator (.ai) format because I’ll be using it for both logo work and larger print pieces where sharp edges and perfect scaling are essential... (Budget: £10 - £20 GBP, Jobs: Adobe Creative Cloud, Adobe Illustrator, Graphic Design, Illustrator, Image Processing, Logo Design, Photoshop, Vector Design)