what would you do ?

[mycat99]

i was out today looking around for some stuff for my tank .i when to a very large chain store here in calgary because i had a credit to use .i saw a nice golden heart trigger they had and asked for price .person came back to me and said it was only 100.00 so i said sold.as she was bagging fish i when and picked up a new light/hospital tank and few other things.when to till to pay for all my stuff and did .just after paying for everthing i was told price on trigger was wrong and they wanted 350 for it or i return it to them .i refused to pay and after they called police to charge me with stealing i ended up returning everthing i had bought .