User blog comment:FairyRaven/Fairy Tail Chapter 416: Tartarus Arc: Final Part, Review and Commentary/@comment-25111584-20150120141518/@comment-7418318-20150120211613

I don't think they would have kept quiet about it if they had done it. Just look at Laki telling Wendy that they had to use her savings to keep afloat.

Besides Natsu's house was a total mess. I seriously doubt that his friends and family would screw his house over even if they did take the money.