No 7day return/exchange at Pep

Bought a mobicell tablet on 23/5/2020 and on the 25/5/2020 after charging the cellphone it had dark marks on the screen, went back to the store and they refused to assist me telling me I broke it... Like really? they then said I must come and complain to the person who sold the phone to me... Pep need to teach their sales person about customer service they treat people as if they own the store