Worse service ever

I have been trying for two days to get a part for my car. I called this place several times in the course of two days, they have a WhatsApp line which is even more hopeless. For two days I am trying to purchase a regulator and brushes for my alternator as well as a belt. Two days they promise to get back to me, first they don't have stock and going to order it and then want to sell me a complete alternator.