Can I pay £20-£50 for an SEO package?

I would advise strongly against using cheap SEO as a way to improve your audience and rankings, even for a local business site. Whilst there are many other SEO consultants or freelancers or who will offer you cheap SEO, you can be guaranteed that it doesn’t work and will harm your site. To clarify, they do this by using black hat SEO methods that will ruin your sites rankings and are against the Google guidelines. No good white hat SEO experts would do this. For example, unprofessional ‘SEO experts’ will use automated tools to add your site to link directories, add your site to spammy forums that they have no control over or use cloaked redirects and other nefarious techniques.

Most importantly, the old saying is true: you get what you pay for. If you want your business to rise up the Google rankings and stay at the top of the search pages, bringing you a stream of quality traffic, then go with a trustworthy, experienced freelance SEO consultant that follows the Google quality guidelines.