Keep paying for a product i am not getting

Its midnight and i am strugling to sleep due to the level of stress that Mr Price has caused me,I signed up for a 100GB data deal last month on the 25th of February with Mr price,I was charged R299 on the spot and never received the data,I kept calling and was told they will investigate,On the 7 of March i was charged another R299 still no data on my side which i also called and was told they will investigate,So A whole big Mr Price company is able to charge me for Data money that they do not send not only once but twice,I need the data for our school work,work and other important things that i am now failing to concentrate on due to the anxiety that i am under because of Mr Price,Seeing them Charging me twice without sending me any data or explanations is doing more harm to my health seeing my hard earned money being taken like that hurts me so much i need help