Vodacom gives bad service

Hi, can someone pls explain why vodacom would unsubscribe me when I make my payments even they cannot explain why and then it takes 2weeks for them to put me online again I work from a farm where our give problem. S so I lost 2weeks worth of business income. I have an expensive plan and all the call centers say is sorry. This has happened twice. This is unacceptable they are very eager to take your money but very slow on giving a service.