MRD delivery and Superbalist not a match

Its so sad being a first time buyer on Superbalist that i have expierenced such disappointment. You guys should have never signed up with MRD for delivery. I ordered two dresses today and was even willing to pay the same day delivery fee. And to my suprise even though the despatch happened at 12.06. I am still awaiting for the arrival the dresses. I am not sure is it because i chosebthe cash option but surely that shud not matter. I seriously hope you look into this cause guys are a awsome site.