My issue was resolved to my satisfaction.
I was unhappy with the shoes I purchased as they were promoted as shoes to help with bunions so I purchased 2 pairs, sneakers and casual wedges for a total of $81. The shoes did not have any bunion correcting aspect and the shoe box of the sneakers was tight and did not fit like a size 39. The wedge shoes were labeled size 40. I ordered 38. After several communications with OnCloud, they have offered to refund 50% which will save me the time and expense of shipping the shoes back to Vietnam, so I am satisfied with this solution.