Arckarmans unfair treatment

I bought a phone in arckarmans in December 2021 in February 2022 i leaned that the phone gives me a problem with internet connection and the phone went blank when i receive incoming calls.i take my phone to arckarmans to be fixed they told me my warranty has expired and i must pay for the phone to be fixed.the fone have a crack on the screen i am accused of that.i am so disappointed in how arckarmans treated me.