Vodacom failure to deliver

Quotation No: 1- ********** ********** I app**** for a vodacom contract on the 1st of December 2017. Confirmation of order was done and throughout December they kept stating that my order was delayed due to stock availability and delivery was postponed. On the 9th of Jan 2018 I decided to call them again to get the status of my delivery. I was then informed that my order was cancelled due to availability of stock and theres nothing they can do to get my order back on circulation. Can an order be cancelled without communication?