^^^ What prettygul1 said.
ces, I've never disputed a charge on a debit/charge card, so I don't know if this is possible, but you might want to call and find out if you can do that, and maybe they'll free up the funds.
I actually just did this with my American Express, due to the absence of a refund which should have been credited more than a week ago. The charge was temporarily lifted from my account while they investigate. I know most credit cards issuers will do this, but again, I don't know if it applies to a debit/charge.