Truenet Commerce — order cancelled and refunded without my opinion.

I have ordered redimi note 4 mobile on 21september at rs 9899. Order shipped at 23/09 and dispatched to guwahati. Order was misrouted by ekart logistic courier (Tracking id-fmpc[protected] to nagaon city instead of guwahati city. Hence the seller has cancelled my order and refunded at 28/09. But from nagaon city it can be easily routed to guwahati city. Main problem is that when i ordered it was big billion offer day and when they cancelled the order there was no offer. Now i require another 3100 rupees to give fresh order. That is why i demand same offer or refund of extra price rs 3100. Recent price is rs 12999.