Poor service- I need my money back!!

I bought my router on the 11th March 2021, they can't activate the router and they also refusing to take it back and refund me. Their customer service is nonsense, very *********** people who are programed on what to say to clients. They are always escalating the matter. My last response on hellopeter on the 23rd March, Musa promised to escalate the matter, is the 21st June and I'm still waiting. Something needs to be done about this business ****.