https://en.wikipedia.org/wiki/Credit_score_in_the_United_Sta...
If I buy a sandwich from you and you take my money, the transaction isn't complete until you give me the sandwich ordered, regardless of your refund policy.
Even if they said, hey, we're trying to get X refund for Y site and facilities... we're expecting to be able to give refunds of Z% of your deposit amounts (expect at least 50-80%. I would think most reasonable businesses would accept that. A total forfeiture, someone is making money off of this and definitely not doing anything to earn it.
In the US, the terms of service, policy, EULA, whatever, carries very, very little weight compared to the fraud committed by the seller. If you sell someone a thing, you provide them the thing, or the buyer chargebacks.