Very frustrated

I originally wanted to cancel my contract with vodacom because of past poor service issues. I thought I will give you another chance. I've renewed and upgrade. Since yesterday I had problems with my contact. My account was placed in softlock of some reason. Today I only received the airtime and not any data as per new contract. The data I had was cleared to zero. I had more than 1gig which disappeared. I'm very unhappy with this. I've call the call centre 5 times. And seems they can't help.