We always expect there to be a few changes to the overall design, and we will work with you to make sure that the final design is what you want. However, once the look of the site has been agreed and we are at a later stage in the design, any major reworking of the existing design will result in additional charges if substantial extra work is required. We will of course inform you of this at the time, before we do the work, and will only go ahead when we have your say-so.