False promotional adverti*****t on discount offer.

A few days prior to Black Friday, my mother received a text that she would qualify for 20% discount prior to Black Friday when registered. We used the link on the text to register her online and received confirmation of the registration. My mother then ordered a kettle, base cover and mattress topper,however she never received any discount on that order. I went to East Rand Mall @home to inquire but I was told that the discount applies to selected items which is not what the text said and at that time unfortunately I did not have my mom's phone with me to prove the message sent and with the pandemic and having underlying chronic illness, I cannot risk her going out. She has been paying this purchase for 3 months now and the discount has never been app****. I need this to be resolved as soon as possible because if the discount is not app**** then TFG is falsely advertising promotions to customers all in thr name if making a revenue at the customers expense while the customer is made to pay the full amount instead of the discounted one as advertised.