Refund

I placed an online order with Samsung on the 2nd of April then on 10th cancelled it as it was never delivered. I received cancellation confirmation later on the 17th only when I made numerous number of calls confirmation stating that a refund will be done within 5 business days. Since when do online orders take more than 10days,each time i contact them its story after another. My worst nightmare and sleepless nights of being stranded without a phone and when I contact Samsung they cannot give me answers. I will never ever use their products ever again, im so stressed out and frustrated.