Quick fast delivery HOWEVER DELIVERED THE WRONG SIZE!!

Great fast delivery. Easy to shop... Only when you order a SIZE 6 and a SIZE 5 gets delivered?? Then you try to contact customer support and BAXTER the BOT is the only option?? Annoying as hell. I ORDERED FROM TOTALSPORTS. Now its an inconvenience to have to return the shoes BECAUSE YOU DELIVERED THE INCORRECT SIZE. How can you get that wrong? I order two pairs of SIZE 6! One was correct, a SIZE 6, one was NOT, A SIZE 5! How can you get something so simple and easy wrong?