Agent sells products at wrong prices!!

<p>I am very unhappy with Mobilesplus. An agent phoned me on the 11th of May 2016 selling me an iphone 5s for R189 per month. We went through the whole admin process and she confirmed numerous times that they had stock and that the price is R189. Today a lady from their Development Department phoned me to inform me that they had their prices wrong. The correct price is R289. The phone was also advertised for R189 on phonefinder.</p> <p>We completed the whole deal over the phone on the 11th, confirming the price, debit order dates etc. </p> <p>You can't complete a deal and then phone the customer 5 days later to say that you had the price wrong. I feel that I should get the phone at the price that it was sold to me at on the 11th.</p> <p> </p>