Spice Jet Airlines — Regarding delayed flight confirmation.

To whomsoever it may concern,
This is to bring to your notice that i am extremely disappointed with spicejet airlines. I had booked a ticket for the 20th of July, but even till 36 or more i did not receive any confirmation from the airlines. So i opted for another airlines and did my booking there. Now after 48hours or so the spicejet airlines have confirmed my booking. Now what will I do with flight tickets ?? The airlines even refused to listen to my side of story. This is extremely disappointing and unethical. Pls consider this request and refund my ammount as soon as possible. Thank you .