Paytm Mobile Solutions — Regarding order cancel and give no reason for that

Address:	Jodhpur, Rajasthan, 342008
Website:	paytm.com

I was order 1 tb seagate external hard disk on 8 july 2017 09:23 pm in 100℅ discount. And and order was successfully placed. I was order continually 3 hard disk and all order are placed successfully. But today company cancel my all order and send text msg for apologies. As a e-commerce company its a duty that company should deliver product after successfully placing order. My all there order number are following.
1. [protected]
2. [protected]
3. [protected]
I have all screen shot and order history and i can show you when needed. Kindly help me out on this.