The Notebook company incompetence

I accepted a quote and paid deposit December 2023 for the replacement of my laptop motherboard. I was informed that it would take 6weeks for the part to arrive after deposit was paid. From March i had to call the Notebook company for progress of the repairs and was told that a manager would be in contact with me. Multiple times weeks went by without any feedback from a manager. On the 25th of June 2024 (6 Months later) the Notebook company informed me that the laptop was repaired. After collection the touchpad was not working and i returned the laptop. The next day I was informed that the laptop crashed. After 7 months of frustration and poor service i requested for a refund and a agreement was made. 3days after sending my bank details i once again had to call to the notebook company for progress and now the manager told me that they are sending it to the supplier for repair. I have experienced pathetic service from the Notebook company to say the least