Customer relations to be improved on queries

I went to Toys r Us Gateway.Looked at baby section came across baby bouncer.Another customer already enquired about same product only to be told it's last one @ the price of R399.10.Other customer didn't take it as she needed it for a gift and it was dusty.So I told assistant ( Analisa) that I would like and made necessary enquiries regarding product & pricing& she assured me I wouldn't have any problems @ pay point.After which I still shopped along with my 4 year old and when we went to pay I asked what price was scanned for the baby bouncer only to be told R699.99.So I explained to the cashier and he called Asodha (Store Manager) who said she will check with the assistant.However the store manager was not sympathetic nor could she be apologetic but rude n left me standing and went away.She even called the assistant in my presence to ask her and the assistant said absolutely nothing as though I did not question her before my purchase.The store manager stated it said \from\"on the tag but every other bouncer next to it had a specific price & then a white tag that said from with same price so how could I not be given at this price.Very dissatisfied bad service & I'm highly pregnant."