Re/Max review: bogus fee taken

I recently inherited a house in Philadelphia. I found a buyer for the house myself. The buyer requested help in the closing from his Aunt who is a real estate agent for the business in question. I did not request any work from the realtor nor was I given any help at closing. After the closing I noticed that I was charged $300.00 for a conveyancing fee. I called and asked what this was for, they could not give a reason of any work performed for me during closing. I also sent emails to the owner of the office Alan Stasson but he refused to provide a reason for the charge. I am a senior citizen and must watch every penny to pay my real bills. I consider this stealing and taking advantage of an elderly person. Since they had no part in selling my home and did not receive any commission they seem to want money anyway, and the money was taken right out at settlement. In effect they just reached into my pocket and stole $300.00.I would appreciate any help you can give me. I tried on my own and can't afford an attorney. Thank You Henry Biczel