Goodwill Industries complaint: The manager cheated me

I went into the norwalk ohio goodwill while waiting for my clothes at the laundry mat across the street. I was digging through all the 5.99 and under items and came across a neat little poster and wanted to buy it. It didn’t have a price tag on so I asked the cashier how much it was and she said it’s the price of any of their posters $1.99 but the girl working with her said she would go back and have them put that price mark on it. Well I continue to stand at the register for 30 minutes while they had the poster in the back,even the cashier was wondering what the heck was going on. The stores checkout line was backing way up and we were all so confused how it was taking a half hour to put a 1.99 sticker on my item. Finally after 35 minutes the manager comes out and said oh I someone waiting on this or something knowing full well I was waiting over a half hour because the cashier sent 3 different employers back 4 different times to see what the hold up was. Then she states that instead of putting the 1.99 tag on it she looked at it and thought it was cool and spent a half hour googling it to see if it was worth more. She comes out with a price tag of $75 because she researched it and it was worth a little but of money and then wanted to keep it for herself. I was irate at this point. She was extremely rude and disrespectful to me and I said how wrong it was what she just did. It should have been priced what they originally told me at 1.99 and I’m the one who dug through the bins for an hour to fins it. They should have price valued it before putting it out on the shelves and it was priced to me at 1.99. I basically was buying the item and she took it from me went to the back with it while she researched the value for 30 minutes because she wanted it herself. I am absolutely appalled at what happened and am reporting this to every corporate and higher up that I can until something is done about this. I got cheated out of something I looked hard and found and was told it was the price of any other poster they receive but the manager seen it and instead upped the price to$75 dollars and keeping it for herself all while leaving me stand in line waiting for over a half hour. All the other customers in line agreed how unprofessional she was for her own gain and they were in shock how she cheated me.