Bad service to customers with contract

I’m phillizar mnisi I took a contract of cellphone with Vodacom , I was paying R 230-00 now it’s R 800 -00 which I don’t know what is for , when I inquire they said My account is in arrears for the month of February , and the line is now suspended, when I check all the invoices I have paid , people from my country don’t take a contract with Vodacom they are croocks , they are affecting our credit score MTN is the best and cheap, now they are sending me from pillar to post , they said email us the pop from *** or *** still dololo , lines closed on *** with I ***-7, I also told them to remove the data, sms, airtym coz I have MTNMIFI they are refusing, guys please stay away from vodacom with their poor network and go for MTN