WorstVodacom taking over nashua bad bad bad servic

I had an contract with Nashua mobile and was very happy with there client service but since nashua closed down i have had nothing but problems service is horrible and they do not have any history of me as a client before nashua made the move... I want to stop my contract but im not able to there is a number of complaints that i have logged but vodacom does not help you with an solution they just give an short and rude answer. I am very upset and want to move to another service provider! Worst EVER!!! Not what i signed up for at Nashua.