I some times get, cards, letters and (emails?) asking for help or assistance, which have no name and address on them.
In these circumstances they have to go to the back of the pile, clearly they will not be answered and often there is little I can do to be of assistance.because I can not check their contents.
If you are particularly concerned about confidentiality if you contact me simple state on your correspondence that it is in confidence and your details are to remain private and that will be the case.
The more information given the better it is when it comes to trying to deal with a concern.