how to leave a good customer service review?

This is unbelievable, nevertheless it is the entire truth!  My daughter chose to switch to T-Mobile and did so.  She then added me to her plan and paid all fees.  She was in another state, so she advised me I would have to go in and pick out me a phone.  I went to the T-Mobile store and waited for quite a while.  They were very slow. A young girl came over to help me.  I told her I was there to pick out a phone, get added to my daughter's plan and get it activated.  I also told her that my daughter was using a promotional they were offering.  She tells me there are no promotionals, so I called my daughter and she tells her which promotional it is.  Next, my daughter tells her I want to trade in my IPhone 8.  The promotional was a half off offer on IPhone 14 if you get a third line.  We did this and now she doesn't want to give us the half off the new phone.  My daughter tells her you don't get to say no on a promotional T-Mobile is offering its new customers.  She goes and gets a supervisor because my daughter was demanding this now and the supervisor says, yes that is the promotional, she can get it and walks away.  I give her my phone and she says it's cracked and I say, "where?".  She points to the corner of my phone and I say, there's no crack on the screen there. She squints her eyes and says right here.  I still didn't see a crack.  My daughter at this point is livid and says, "momma she's wants you to pay full amount for a phone because she gets commission off it".  My daughter then says, "you're not going to hustle my momma because she is a senior citizen".  My daughter is on speaker phone and the supervisor hears her and comes over and says, it looks like a small crack so we won't be able to take the phone. My daughter says, even if it is a small crack, you can still take it.  I tell my daughter, there is no crack on my phone.  I said how much is the phone?  She tells me $630.00.  My daughter says, just activate the line there and I will get the phone here.  The young girl then tells her it will be $89.00 and we ask what for?  She said "fees" and that's all, but couldn't explain what fees. At this point, I told my daughter I did not want to leave my phone company because this company was a mess!  Supervisor was no help.  They were scamming customers and finding the littlest thing to gain a commission on.  Trying not to honor promotionals and charging ridiculous unexplained fees.  My daughter said just leave momma, I'm going to write a review and file a complaint about this.  She said, go to another branch and even though I had had enough, I went to another one.  Before I left the young girl tells me the phone is more that $630.00 and did I still want it.  The audacity of her.  I walked right out the door and went to another location.  Sometimes you have to do a reset (lol). At the other store they were SUPER helpful and professional!!!  My daughter said she paid $10.00 for the transfer instead of the $89.00 at the other location. I got my phone, got it activated, got good instructions and went home satisfied with the second T-Mobile customer service workers.  The young girl that helped me was so sweet and kind and we talked the entire time while my phone was activating.  I say this to customers, watch out for these T-Mobile workers because they work on commission and will literally rob you with bogus fees to pad their pockets.  T-Mobile needs to look into this because this could become a serious matter that could lead to a class action legal battle for them.  If you are a senior citizen, they will take advantage of that for sure.  T-Mobile, you need to do better. I'm embarrassed for such a good company that came highly recommended to have these unfair practices.  Be vigilant when visiting them.