No customer care on contact platforms given

I have been using Takealot with always a success. Today when I ordered and paid the message said payment DECLINED When I paid again the money was take twoce. I called them I tried to cancel 1 of the duplicate orders I tried to e mail but the website Takealot is out of order Black window popping up all the time PAGE DOES NOT RESPOND All options do not respond Can Takealot please contact me as they are ot available to contact on any platform.