Bad customer service

I purchased my laptop from your Greenstone store in March last year, but it started giving me issues in April this year. I took it back to the store on the 17th of April, and it was booked in for repairs. I paid for the repairs 2 weeks later, after calling the store multiple times to find out what the issue was and to get a quote for the repairs. As of right now, I haven’t received my laptop back. Your men don’t communicate, so I have to call them almost everyday to ask about my laptop. They promise to call me back with an update, but they never do, and every time I speak with them, I get different information about my laptop from different staff members. When I needed quotations for repairs, the first red flag was when I received different quotes from the 2 men working there. There’s no uniformity in the information they provide.