Delay In Delivering Wedding Video And Album

I hired a wedding photographer for my wedding. We gave him 80% of the amount in advance before the wedding as per our agreed terms (We have his email confirmation of terms of payment). Now all of sudden he starts demanding to give more advance else he won't give wedding video and album. He also mentioned diff. address at diff. portal like Facebook, Instagram. He has already done similar acts with other couples also which we came to know after giving advance. (we have some mails by past clients). We asked for sharing a soft copy of the album before printing so that we can decide which photo looks good and which does not. As per him, the album is ready and he will give it only when we give half of the balance money. How can we give money without even seeing the album? In the same mail, he mentions that "I do not want to give you any trouble and end this is a peaceful way". I want to know what is prospect if we file consumer complaints (for fraud, mental harassment, and threat ) or what other option we have.