Metrofibre is unable to link my Samsung TVs to their Nokia fibre device

I have had excellent service from Metrofibre since inception but unfortunately on Sunday 26 May the service became erratic. My devices were only seeing the SSID device at times. My neighbours' devices are visible to some of my devices. My access to Netflix, whatsapp, my email service and YouTube became difficult. On 27 May I emailed Metrofibre about my problem but I didn't get a reply. On 28 May the polite Mr Derrick promised to have my service back by the end of the day. He was as good as his word. Unfortunately, by 10 pm that night my internet access died in the middle of a Netflix movie. Nana from Metrofibre informed me on 29th May that another new 5G SSID service was now available from Metrofibre but we battled for hours to get it linked to my phones, laptop and TVs. Finally after 4 pm on Wednesday 29th May, she succeeded in getting my devices linked to the Nokia Metrofibre router but not to my Samsung TVs

I was advised by the superbly professional Lerato of Samsung on 29th May 2024 that Metrofibre needed to link me to the original 2,4 fibre service which had become very weak/ Today, Metrofibre's Thabo was unable to link the Metrofibre router to my relatively new televisions. I asked Thabo to please let me speak to the head of his department but all he said was that he would 'escalate the problem'. He was thoroughly unhelpful. He kept asking me to google 5G and the 2,4 service to show me that 5G was far stronger but I knew that already. Please help Metrofibre.