Cell C blocked my phone

Upon my account being fully paid, with NBA the company Cell c handed my over to my device is still blocked and i am unable to utilize any internet connection. Unless on Wi-Fi. Email cell customer service box to receive the most unprofessional and rude email ever. With email that was sent in December Cell c rep**** in February with a useless response.

Went to their out let on East gate to be only referred to another email address Service is on 0 with cell c..