Finance 27,waste of time applying.

First I was pre approved, then after mailing me documents to sign, which I did, they kept asking for the signed documents which I sent to three e-mail addresses. Then a new application was sent after a few days and I was asked to sign those, with a new lessor amount. After keeping my cool and signing and excepting a Debi check, I was mailed and told I don't qualify any longer for what I approved a Debi check for. The lady assured me they would not debit from my account due to this error on thier side, all good and fine, why did they waste my time and get my hopes up, one word comes to mind ***********.my credit score is low and getting a pre approve loan that gave a bit of hope was great, until it wasn't.