When an LA first prepares an EHCP for a child/YP (or amends it at any subsequent point) it must issue it as a Draft Plan.
On issue of a Draft Plan, Parents/ Carers must be given 15 days to make representations on the Plan. This can be done in writing, or a meeting can be requested.
If you are unhappy with any of the content, this would be the time to first raise it with the LA. You should respond with details of the information that you want added, changed or removed. It would be advisable to provide details of why you want this changed i.e. identify the evidence your request is based upon.