Stage Revolution is a very successful band, with millions of fans all over the world. Rachel is the head of the Perth branch of the band's Australian fan club. She was shopping in Perth one day and walked past a discount shop, Spandex Pty Ltd, which sold music and t-shirts. Rachel noticed a whole rack of t-shirts on display in the shop with Stage Revolution designs on them. She selected a t-shirt that had a picture of the band's latest album cover on it. The marked price on the t-shirt's price tag was $10.00. Rachel went to the checkout and handed over the T-shirt. The sales assistant rang through the sale and said to Rachel: "That will be $35.00 please." Rachel replied that the marked price was $10.00 and that $10.00 was all that she was prepared to pay. The shop assistant replied that it was too bad as she had already rung through the sale, and Rachel had to pay the full amount of $35.00 before she would be allowed to leave the store. Rachel, who felt under pressure and really wanted to buy the t-shirt, handed over the $35.00. She now has buyer's remorse and is very angry. She comes to you for advice. Using the four-step process, discuss the element of agreement required for the formation of a contract. Consider when a valid contract was formed between Rachel and Spandex Pty Ltd.
Required:
With reference to law and precedent cases discuss whether the element of agreement (offer and acceptance) for the formation of a contract has been satisfied. Consider when a valid contract was formed between Rachel and Spandex Pty Ltd.

NOTE: Focus on contract law. DO NOT discuss consumer law.