Complain

I took a contract on the 21st of April 2022 around 4 pm and I was given two phones. The technical guy gave me his numbers and said if I encounter problems I should let him know. Upon arrival at home, I tried to switch on the phone and one of them didn't switch on. I contacted the technical guy and he said I should leave it at the charger for some time. I charged it overnight and still it didn't switch on nor show any sign of charging. I took the phone back on the 22nd of April and upon arrival, the store manager by the name of Chade gave me a rude behavior telling me that I signed the terms and conditions as such they have to take the phone for repairs. I found that very uncalled for because the phone is new, it doesn't switch on and now I have to wait for 10 days to get it sorted. I immediately decided no I can't wait for that rather I will cancel the contract which she instructed the consultant to cancel my contract. I was really surprised that we still have this kind of people in management positions, a person who is willing to lose a client for something that can be easily exchanged and sorted. I am honestly disappointed by the way she behaved and can someone do something about this kind of behavior.