No support with internet options And blame of 3rd party chosen by vodacom

Good day, i had a Fibre network with vodacom for a few years no problems or hassles, I recently moved and the place im staying at now does not accommodate fibre. I then made a call and took LTE and specifically asked that is there a limit to the data, the reply was yes 400 Gig the. I proceeded to ask if that 400 runs out does my network slow down or does my internet completely stop, this question was asked more than one in different ways in order to ensure we both understand each other the response was yes you would still have internet it would just be slower. I then went on to sign up a contract only to find that when the data is finished I would need to buy more. Frustratingly I contacted Vodacom to my attention every person i come into contact with has a different story my case is logged then i dont get feed back vodacom is passing the blame to a 3rd party company that they chose to handle there sales again quick to take the money but no support i am still awaiting the 3rd party that vodacom chose to contact me