Faulty battrey

Yoh my jesus don't buy from this came my phone came with a faulty battrey, it doesn't even last 3 hours and i was told to bring it at midraind, where will i get money to get to midrand when i have used my last money to buy this stupid useless phone,its basically a dead phone that i bought 4500 why replace a phone with a **** battrey I'm so bad and i wouldn’t advice anyone to buy from this guy very bad