Bull**** customer service

I ordered items from runway that included two different sets of swimwear. They delivered my package and it was missing the bikini bottom of the one set. I enquired only for them to tell me that the item in stock is damaged and they cannot send it to me. I can return the top but I will have to pay for them to collect the top. What ****ery is this? You pack my order and don't inform me that you cannot send the one item & then have the nerve to tell me if I don't want the bikini top I can return it at my own cost? For your companies incompetence? I want the bikini bottom I order or you must exchange it for something else and come pick up the bikini top in my possession at no cost to me.