Hirsch's pathetic service fire microwave

Bought a Hisense microwave...stored it for about a month then opened box used it for about a week and there was fire coming out of it. WhatsApped them, they say you will get a refund as Hisense do not fix which tells me Hisense products is an issue. Kenilworth branch tells us that we have to swap it for another Hisense microwave yet was told on phone prior it can be swapped for another brand. Wants to sell me open microwave and then we asked for one from another branch...they insist we must pay at Kenilworth branch and collect at Milnerton. Sales lady she on hold with Milnerton branch but we see her hanging up the call to help another customer. All this ordeal took about an hour...and I had another appointment... these people have no regard for your time nor do they focus on service...all about sales...