Shady customer service

I have ordered and paid for the Samsung Air conditioner 18000 Btu Inverter. I have paid on the 28th November 2019 and received confirmation of payment the same day. I have received emails tracking my order, first for a date of the 03 December 2019 and then the arrival was then changed to the 06 December 2019. For all these dates, the air conditioner never arrived. No word and no information on when will the air conditioner be delivered. I have called asking, I received no clear response. I have sent emails, nobody seems to know what it happening, everyone I have contacted is making a follow up but there is no concrete information that is forthcoming.