Cash Converters Kempton Park review: Non-working laptop

I brought in my laptop for cash advance on the 19th of Nov and got it back on the 19th of Dec 2022, the laptop was dead when I tried to switch it on. I left it on charge for the day and tried it later after work it was not working, unfortunately I had to go away for a holiday and came back the following week on the 26th, I called in to inform them on the 27th of Dec and I was told to bring it back in, without time frame. since I have been busy and sent my girlfriend on the 18th of Jan 2023 to bring it in, and she was told its too late they cannot help me anymore. I called the manager and she said the same thing to me. please help me resolve this, I am a student and need this machine working.