I'm overwhelmed by the bad service

This is with regards to the incredible Connection at the Mall of Africa 1. I bought the laptop on the 1st of December 2016 for R4999 2. I discovered it couldn’t fully charge in June 2017 3. I submitted it on the 16th of September for repairs they told me 14 working days 4. I called on the phone 13th of October(no answer) 5. I called on the 16th of October, they told me they’d look for it, (they didn’t get back to me) 6. I went in to go query on the 17th of October only to find my laptop has been ready for collection since the 2nd of October (no one notified me) 7. I get home and find it has not been fixed, the battery still doesn’t fully charge

Basically I'm just overwhelmed because I delayed with handing it in for starters because I need the laptop for school, now I don't know what to do because I need to have a laptop for my assignments and the exams which are coming up. Do I ask for my money back? Or request a new laptop?