If you require a quote in order for us to provide this as quickly as possible please supply details of sticker size and quantities, both of which can be approximate; otherwise it's a bit like asking "how long is a piece of string?". Do you know the type of sticker you require e.g. vinyl or static cling etc, or what the stickers are to be used for, share this with us and we can ensure we are providing you an accurate quote.
Artwork wise; if you have a file you can email with an example of what you are looking for, even if it's in development stages, or a scan of a logo etc, this would be of great assistance even at this early stage. You are of course welcome to send this by post too.