DSV Couriers poor service and lies

Discovery Bank notified me that my new credit card would be delivered by DSV Mounties. I got a call from DSV and arranged for the 2 cards, mine and my wife's, to be delivered on Friday 3 April. On 3 April they had not arrived by 3.30 pm so I phoned the Port Elizabeth branch. They said the driver had said that I told him I wanted to postpone delivery to Monday 6 April, but meanwhile I had never even spoken to the driver! Then my card arrived with the courier on Monday 6 April but not my wife's. When I phoned DSV to find out why my wife's card didn't come they said my wife had phoned them and said they must only deliver it after the lockdown on 21 April. But my wife had never phoned them. They said they had the voice recording of the call so we asked if they could play it back to us, but they couldn't!