Mislead by Multichoice false marketing.

On 26 April 2022 I upgraded from Access to Compact package after seeing the promotion on your website that customers who upgrade from Access/Family to Compact will get R100 discount,thus pay R329 p/m for three months. After I upgraded,unfortunately the amount that reflected on my account that I must pay did not include the discount,I contacted your call centre and the consultant after checking my account said I do not qualify for the discount as the promotion is not meant for all customers. I was shocked because on the website nowhere it indicated "eligible or qualifying customers only". Now,too bad,I am stuck on the package I can not afford under normal subscribtion fee. Please clarify the matter on who qualifies and how as I feel mislead/deceived by multichoice marketing.