Dissatisfied Customer Service Delivery

I bought a Connex Slimbook2 Celeron Laptop (Blue) on 14th September 2021 at Home Choice. The laptop was delivered on the first week on October, long past their 7-14 day delivery policy. Home Choice claimed they could not get hold of me, they’ve been calling the number I’ve requested for over a year to be removed from their system. I open the Package, try to set up my laptop, there was an error, my @ symbol wasn’t working, it showed up as " instead. I called Home Choice immediately for them to exchange the Laptop. I’m then told I must wait 7-14 days for them to come pick up the laptop. I asked if it’s possible that they could simultaneously take the erroneous laptop and exchange with the new one on the same day they come to my house, as I desperately need the laptop for my exams which start on 11th November 2021. I’m told it’s 7-14 days to pick up and 7-14 days to deliver a new laptop. At this stage I’m frustrated as my request is not entertained. I asked if I can speak to the Supervisor, I’m told Customer Care works from home, 2 occasions a call centre agent promises that the Supervisor will call me, I’m still waiting for that phone call till today. The erroneous laptop is still with me, there’s zero communication from Home Choice, yet the first instalment on the laptop is already debited from my bank account. I’m I supposed to pay for a laptop I’m clearly forced to keep? This is so unprofessional of Home Choice, I’m very disappointed with their service.