Stuffy Line Stuffy Nose RUDE AGENT

If someone tells you endless times that they are unable to hear you do you just simply continue or do you say let me call back?? Secondly when calling someone explain the initial amount taken up and interest occured then ask if your client agrees!. Do not have attitude when asking why didn't you make payment. Its call center environment but it is all about ettiquette ???

Then when explaining and confirming the agent is stuffed up or congested nose I cant hear half the things the agent is trying to say! Your customer service and experience disgusts me