Pep paulpietersburg ****mers

I bought a phone at pep paulpietersburg on Monday the 6th October 2025 and the phone screen is flipping on and off as if was fixed. I went back to return the phone to Pep store today which is also Monday I was told my 7days was over and I was really surprised how can my 7days be over where as I bought the phone Monday and returning it Monday am told 7 days is over this is daylight ******* and ****mers