Mad as hell

What insolence they have I bought clothes and found out that I overspend so wanted to refund something the girl named precious said to me come back tomorrow we don't refund same day so I went home and only to loose my slip and the next day when I go she says she won't help me without a slip who's fault is it because I wanted to exchange she told me stories and today she's telling me nonsense again mxmmm very very poor poor service I'll never ever again buy here id like this to be taken to another level as too how come I'm treated like I took those things for credit it's my money that I used there and they not doing me a favour either