Dion Wired - no delivery after TWO MONTHS (Massmart)

On 24th November I ordered and paid for a printer which was to be my wife's Xmas gift from Dion Wired. I mailed them on 14 December to query delivery and all I received back was an auto-reply. I was called at the start of January by an employee of Dion apologizing for the lack of delivery. He said that as they had no stock, I had the option to get a refund or wait for delivery. I opted for delivery as I wanted the printer for the price I paid- after all they kept my money for basically 1.5 months! I was assured that by end January it would be here - OR that they would send an alternative model of a similar specification if there was no longer stock of that product. Furthermore, I sent a complaint to ********** on 8 January 2018 from which I again received no reply. Ironically I spend large amounts with other Massmart subsidiaries in a business capacity and they treat me well - why would they neglect an individual customer in this atrocious manner?