Incorrect delivery and no response to e-mails

Had the most ********** experience from Posh Baby Boutique's Debbie Becker. I ordered a grey stripped boys suit for my nephew's christening. What I received was a black suit instead. Upon realising the incorrect delivery, I immediately sent her an e-mail to try expedite the exchange to ensure we have the correct item on time. Despite numerous mails, to date she still has not responded, the christening taking place on Sunday. Have since been informed she knew there was no stock of the suit and did not have the courtesy to inform me but opted to send me what was in stock. I am not leaving it here!!! Be warned, Debbie has no concept of customer service and quiet frankly dishonest!