TERRIBLE SERVICE!!!

Hi I am in desperate need to get the following resolved. This is an official complaint regarding my hollard / Jet account. I keep on getting texts and emails stating that my account is in arrears and that I have no made payment. Please note that I am a pensioner. However I have been paying on time every single month. This is making me physically sick because everytime I get told that there's a block on my account. I don't know what to do anymore. I've been into stores and stood in long lines but there seems to be nobody who can assist. This is completely unacceptable and quite frankly disappointing. I've been a client with hollard since 2011. And I actually regret it now. Almost 15 years later and I still get treated like I'm nobody.. Nobody in store is willing to assist at all. I am so disappointed and disgusted with the service recieved. I cannot fathom how this is something that can happen each month. Each month I pay my account and each month I'm told that there's a block on my account. What's the procedure going to be like, if something happens to me, God forbid... My family will be running around like headless chicken, no fault of my own. I need this resolved ASAP. This has been going on for too long. If you have to see the email trails going back to 5 years ago.. You'll understand my frustration. Since Covid, this ******* has been going on. Need resolving please. I will be going ahead and putting everyone on Hello Peter. I am sick and tired of all of this.