Furious, help needed!

Bride and Co is singlehandedly going to RUIN my wedding! I ordered a brides**** dress from you over 2 months ago, I SPECIFICALLY stated that my brides**** are MEDIUMS and double checked that the correct sizes were to be sent from Parkview to Canal Walk, when my brides**** went to pick it up - They sent a Small!!! I am getting married in TWO WEEKS and still don’t have this sorted! Are you kidding me! I will NEVER purchase from Bride and Co again and will make sure to tell anyone and everyone how bad your service is! This isn’t an ordinary day, it’s my WEDDING DAY! I need someone to contact me ASAP!