Mermaid Haus Jewelry review for Return Prime:Return & Exchange

I just added this to my store. I wanted to start off with the free plan with 5 requests a month. I was setting up everything and noticed I have to pay $19.99 a month to be able to let my customers exchange for other products. That seems a little pointless to me and does not make any sense. If you are going to allow up to 5 requests (exchanges and returns) for a free plan, shouldn't that include any EXCHANGE? or at least offer a free trial? I will be switching to another app unfortunately.