M’boro Auto Parts

I had a frustrating experience with these guys today.
A friend called me to tell me that these guys had a side view mirror for my car and that they wanted $ 50 for it. So today, I get up, give them a call, and confirm that they have my part and the price for it. I then drive almost an hour to this place, to go through the search process again. They find the part, but this time they tell me the price is $ 75. I explained to this guy that whoever I spoke with earlier on the phone told me $ 50. Then I wait. 20 minutes later, I was told that they didn’t have what I needed.
I was very upset. I drive almost an hour, and with 3 confirmations that they have the part, to arrive wait an additional 20 minutes and being told that it was $ 25 more than the original, to tell me that they didnt have the part.
Im not sure why I was told it would be more. Could it be that I (a female) went there by myself and they thought they could get more from me? Why did they all of a sudden not have my part?!
This is my Beware.