“Exemplary status” – that is quite the subjective term. Unlike having been actually disfellowshipped or disassociated, which is a more black-and-white, either-or status formally on record, the status of being “exemplary” or not is a concept which really could be at the discretion or whim of almost anybody with any kind of position in the organizational hierarchy. The idea of being “exemplary” could, as Our Kingdom Ministry has stated, involve ‘having well-behaved children’ – or, it could be a matter of just being “well-reported on,” or having a “good reputation” in the congregation, which would basically be at the mercy of whatever rumor mill is operating around where the person lives (where hearsay and innuendo rule supreme). And, of course, there is the old guilt by association trick; i.e., in the example provided above of harboring a disfellowshipped family member in the home. Being “exemplary” or not is pretty much infinitely broad, and certainly as subjective as you can get.
It would therefore be basically impossible to establish with any kind of factual or legal veracity whether a congregation member would be rightly deemed as not exemplary. It would basically boil down to a he-said-she-said scenario.
As for the actual monetary expenses involved, I would think that it would depend on whether or not there had been any prearranged deposit made through the Watchtower corporation. The Watchtower couldn’t be responsible for any deposit made directly to any lodging facilities by an individual member. However, you would think that any deposit made through the Watchtower would be considered a legally binding arrangement or contract, and as such would be subject to mandatory refund if the member/client was denied satisfaction of the services already prepaid due to some intangible and arbitrary judgment which couldn’t even be proven in any event.
As an analogy, think of someone purchasing, say, a vacation package through a travel agency, or perhaps purchasing an item through an online fulfillment service such as E‑Bay. If the business arbitrarily denied the client his/her right to the services already prepaid (especially due to some disingenuous and improvable “hang‑up” they had about the client, such as being gay or having red hair, etc.), then you would think that they would morally, and probably legally, be obligated to refund the client their funds. That would certainly be the essence of “natural law,” because, after all, fair is fair – even for an evangelical corporate giant such as the Watchtower.