交換してもらう
I get the clothes exchanged.
私は服を交換してもらいます
I get the clothes exchanged today.
私は今日、服を交換してもらいます
I get the clothes exchanged at the shop today.
私は今日、店で服を交換してもらいます
I get the clothes exchanged by the shop assistant at the shop today.
私は今日、店で店員に服を交換してもらいます
I show the receipt and get the clothes exchanged by the shop assistant at the shop today.
私は今日、店で店員に領収書を見せて服を交換してもらいます