Charged with deposit fraud as of defaulted payday loan

I received a phone call from the 'claims investigation' department of a company (they didn't mention the name though) and said that it was regarding a payday loan in Utah on which I defaulted. They accused me of deposit fraud and told that there is a warrant for my arrest. He also asked me to to pay $750 and let the warrant go away. Can they really arrest me for this. I feel I might land in troubled waters.