Poor customer service

Yesterday on the 09/10/2018 I bought a DSTV HD DECODER and I was told to write my address and contact details on a piece of paper and the technician will come and install it within a period of 4 days. So I asked Lillian Mothisi (Cashier) to give me the technician's direct cell phone number and she said they are not allowed to do that. I stay alone and today I've been at home since the morning as I'm afraid to go out since I don't know when this technician will come and the sad part is that I can't even call him/her to ask when they'll come to my place. To me it's very *********** for PEP Store to treat their customers like this, I should have went to GAME Store as they do give out the technician's contact details, my sister bought hers there.