Rosebank manager is so rude to customers and won’t give me a refund - Consumer Complaint for INCREDIBLE CONNECTION - HEAD OFFICE

Hi. I bought a laptop 10 months ago, it gave me issues from month 4, I would take it to the store and the tech guys would always say it was a software issue. So every time they will update something and say it’s fixed. Never got fixed. So I sent it back to Mercer. It came back yesterday after four weeks of not having a laptop and still has the same issue. I called the manager to ask for an exchange or refund. He was very rude on the call. Wouldn’t even listen. Said I should take it back until they find out what is wrong with the issue. So does that mean I won’t have a laptop to use until the issue has been found? I want a refund as it is under warranty,the manufacturer has failed to fix it so why should that inconvenience me?