A little ticked about a vender and need advice!-Updated!!

Hi everyone. I am a very long time poster that thought it would be a really good idea to ask your advice under a different name as this question pertains to a popular vender on this site most people know that I am using.

I have been going nuts trying to decide if I should send her an email or not and I thought I would go to my friends on the '05 board for help.

Ok here is the story. I had a hair trial with someone from this site and booked her because I really thought she had talent. We subsequently did 3 more trials until we finally got the right look down. The second trial was a complete disaster by her own admission. The 3rd she came to my apt since it was nearing my day and it was close for her. I paid a very decent amount for each trial and tipped her each time even though she owns her own business. Well on the 3rd trial I was talking with her about an amazing price my father was able to work out on my cake and she actually said to me that she will charge less to a bride sometimes if they ask and she just asks that the bride not tell anyone!
. I was floored. Here I am paying this women lots of money for the trials and a hefty price for the day of and she says this to me.

So now this has really been weighing heavily on my mind as you can imagine. I mean I will have paid this women a total of $380 by the day I get married (not including tip if I do decide to give her one). Do you think I should send her a very diplomatic email asking her about it? I don't know if she will adjust her price for me but I felt like before I knew this I would have tipped her (even though she raised her price last minute due to the fact that I had so many girls and she wouldn't be able to accommodate all of us without bringing in an assistant or having us get up at 3am) and now I really don't want to but may feel guilty if I don't.

This is what I wrote if you do think it would be OK to send:

Para 1-Directions

Para 2-Time frame

Para 3:
'I also wanted to bring something up to you. At my last trial you said something that has been in the recesses of my brain nagging at me for a while that I wanted to ask you about. You had said it to me when I was talking with you about how my father was able to get a better price on a cake than originally told to us. You had mentioned that sometimes you will charge a bride less for your services and just ask that they do not tell anyone else. Now you saying that to a bride that has paid a lot of money for 3 trials and is paying a lot more on the day of probably was not the best thing. Now you can see why it is weighing on me to ask you this; is there any wiggle room on the price you had originally quoted me?'

Para 4-Where I should send the check

What do you think would be the best way to handle this?