Help with Wordpress Website

I have a simple Wordpress website on which I need assistance and help with content upload and some simple editing. the website has just been created but the developer didn't set up one of the pages the same as the rest and I am having difficulty in editing any of the content that they pasted on there just for the purpose of building the site. I need help with reversing a change they have made to my page header and the page menu titles and will need some general help in upload or formatting of content/images on the site. As there is only a small amount of work here for someone who knows Wordpress it might only be an hour or two's work or even less I am finding it very hard to put a price on this job so I have put it in as a hourly rate although I will want to know reasonably accurately what the cost will be before proceeding. Being able to communicate effectively is paramount so only 100% fluent written and spoken English only please.