If a member wants to contact a company do so on your own , my only suggestion is that you try and persuade them that there is a potential market share up for grabs , its a company , and a business that has employees with families to support they have to sell product to keep the doors open and the lights on - If you can persuade them in a professional manner that there is some type of opportunity - you will be their new best friend
Rantings and the like are almost instantly interpreted as trash bin material or sometimes unstable types - The person looking at the letter deletes it and then goes about their working day