Cash crusaders Welkom at Checkers are a bunch of lying people

I found a GPS last night at Cash crusaders Welkom ay Checkers and spoke to the one sales lady and asked her to please keep it for me as i will take it. Next morning as i getting ready to but it they tell me its sold. Very unprofessional people making promises then selling it while they commited keeping it for someone else. Will never do business with them ever! Tells me it was sold online. I looked last night to make sure its not listed and it never was so i get the feeling its kept for a friend or someone is lying