Bad customer service!

I bought a cellphone on the 24th June 2021 in less than a month, after charging it, when i removed the charger from the device it came out with the charging port which i think a manufacture fault. I took the phone back to the store on the 15th July 2021 and was told they need to take the phone for repairs and it was told it might take 3-4 months. I was also notified that i might have to pay for the device to be fixed as it might be a physical damage but i should wait for the call from the repairers. I was not happy with the outcome of returning the device so i called the customer complaints line on the 26th July 2021 and logged a complain as to why should i wait 3-4 months to get a replacement when i just bought it, i urgently needed a phone when i bought this device so now i must wait for months to get a new phone!!! And again why should i be paying for repairs on a brand new phone! From the customer complaints line i was told i would receive a call with the outcome of the investigation within 2-3days, till today no one has called me back! instead im the one who keeps phoning to make follow ups but i still get told someone will call me who deals with that department but no one ever does!! its either i get a new phone or a refund so i can take my services somewhere else!!!