Van full of livlihood tools repossessed. Paid to get bank to release van. Repo man decided to add $150., no, $500., well, $300.! Is that legal? Help!?

Barely able to scrape together the minimum bank payment plus $150. additional for personal property return fee, before deadline (auction date?) of 2/17 originally set by repo man, Mark, owner of Countywide (not sure if that's full name or not). Paid off bank Tuesday 2/14. Called Repo Man (RM) to make appointment to pick up van. RM informed us there would be a $75, per day fee for storage! Don't have it!! Called bank. Bank said RM was not allowed to charge storage fees, so RM changed the personal property reclamation fee to $300. from the original $150. Don't have it!! RM is only "open for picking up the van" from 8 am to 9 am M-Th. weekly. Bank refuses to put acceptance of payment/authorization for release of van in writing, so Sheriff's deputies can't enforce anything based on word of mouth. RM won't give his full name. The contract waived at us today at 8:15 am by an unidentified man whose boss is RM, said "A & R" at the top, not "Countywide" as RM told the deputy by phone. What now?