Fed-up with bad service

I have been struggling for 3 months just to get a correction done on my account. Email after email because if I call, staff is either outside or the phone just don't get answered. The 3 times I did manages to speak to someone I was told they are busy I need to phone back and the other times they didn't understand and only sent me my statement. But if I a person don't pay, they are quick to block you meter or so. Sad that life has became such a struggle with simple little things. It's time to wake up and appoint people who wants to work and know how to do the job.