Poor customer service and communication

it’s been over a month now (03.02.2021) since I've requested incredible connection to fix my laptop which was bought at their store in cresta mall last year around November. they are very poor with customer communication, they had promised to fix my laptop within 14 to 15 working days since it was delivered back to their technicians but when I call the store these no one who answers the phones, when you go in person to make a follow up about the laptop the technician does not have all the answers. they have delayed my work.