Incorrect billing from agents

***..incorrect billing...1st agent on the WhatsApp platform said my bill is 369rands then yesterday the 2nd agent on WhatsApp said its 549rands...the 2nd agent was rude and obnoxious keep on telling me if I don't pay I will be disconnected to watch dstv when ALL I was trying to convey the 1st agents billing amount was the said 369rands which I'm happy to pay..maybe it was knocking off time for the 2nd agent and my contact was cut I have the conversations on file on WhatsApp..please remedy I'm.not saying I don't wanna pay but was given wrong information this happened before so it was remedied quickly by the supervisor the agent refused my request for escalation I asked more than once think they covering up for each other there at my expense..please redo my billing amount to 369 so I can pay and not be disconnected..that's my plea..I give the 2nd agent 1percent of a quarter star...bad..