Watsup Data Bundle query not resolved

On the 10th july 2022 I was assisted well by anagent , my intial problem is that I was still unable to exchange my airtime for watsup bundle. Previously I was assisted well and was refunded the agent adviced me that I should try after 2 weeks. Hence on the 10th july I informed the agent that I am still unable to purchase watsup data ; I am only purchasing data and sadly the data does not even last long . I was concerned and still very much spending too much on airtime. On the 17th July Vodacom texted me apologising and sended me 250mb valid for 30 days unfortunately the bundle did not even last . I kept purchasing normal data till to date ; still wasting money as for 7 days it does not even last long . I know when I was able to purchase watsup bundle it used to last. On Friday I received a call from a vodacom agent and unfortunately I told the agent to call me back after 15:30. The agent did not get back to me. I appreciate the effort and service I was rended by the previous agents . Unfortunately my query is still not resolved. I still keep wasting money as the data does not last ! Vodacom kindly monitor the amount of airtime I have been exchanging for data; it's a huge concern. My plea is to please assit me with my query. I only need my watsup databundle to be activated to make my life easier as I have been using alot of money to purchase. Its really not fair.

Your service would be appreciated

Lebo *** I am not on contract Samsung A10