Flipkart - Package not delivered and ordered cancelled without any intimation

I ordered a MacBook Air from Flipkart during the big billion days sale,however they have cancelled the ordered without any intimation when it was nearing the delivery date almost after * weeks. When I contacted their customer service their response was they cannot do anything now the ordered has been cancelled by seller because they have received orders in bulk. I waited for so much time after doing the full payment for the product. I was eagerly waiting for the product and they cancelled it abruptly. I could have bought it from somewhere else if they were incompetent to deliver the product. After making me to wait for nearly *weeks they left me with no option