Rain Internet Service - Terrible

Received a 7 day trial in March and within the trial period I've asked Rain to put my contract on 'pay as you use' until I'm ready to move over to them from Telkom. They charged me prorata for March, and the full R250 for June and I did not use their services. Toward the end of June I decide I will move over to Rains unlimited R479 plan. A consultant assisted me and come 1st July, they instead put me on 'pay as you use' instead of the upgraded plan and now I cannot even access any internet as they are keeping quiet and not assisting me....plus I work from home. They promised me a credit and are still charging me. They are impossible to get hold off and I am extremely frustrated and upset. If anyone has contact details of someone senior and is able to share, please do so. I've got tons of communication with them and still struggling to sort my issues out. If anyone from Rain reviews this, please call me.