Abusing the use of letter salutations.

I have been using “To whom it may concern,” so frequently to the same recipient, I feel like I’m abusing it.

You know that in business and formal letters and emails, letter salutations are very important when addressing someone you are inquiring to. Upon checking for more info about this, I see there are plenty of other salutations I can use, like “Dear” or “Dear Sir or Madam”, or even a simple “Hi”.

But for my problems I’d like to inquiry, I want anyone to help solve my issues. In that case, should I continue to use the “To whom it may concern” salutation?