Open Port On Router

SR*** This review is in regard to the above service request which has ONCE AGAIN been marked as closed when nothing has been resolved. According to my anti virus program I have an open port on my router, 22 (SSH)?, which could give hackers access to my computer. When looking at the anti virus report it shows a number of unrecognizable devices connected to my wi fi. I have spoken telephonically, through online media and with a technician who came to my house on another wi fi matter. He stated he'd put this open port complaint of mine in his report to Vodacom. Someone phoned me after this but only to discuss the one issue which was my slow download speed and which the technician had managed to rectify for me. Said to use the 5G option. This person that phoned me wasn't aware of the open port and said he'd forward this on to the necessary people. Today, I receive an email stating something about Vodacom waiting for my feedback. WHAT FEEDBACK DO YOU WANT??? Then a couple of hours later another email is received stating that the matter is now CLOSED!! How can you close something that hasn't been resolved?? This is now becoming ridiculous. KINDLY GET YOUR ACT TOGETHER AND DO SOMETHING ABOUT THIS PROBLEM!! Don't let me keep on speaking to some or other call centre who simply pass the query up the line and there it dies..