Tenant paying rent their way

[Yengkong Sayaovong]

I'm trying to find quality tenants by doing credit and background checks. 1 applicant's credit and background check and income verification matched my criteria so I accepted their application.

After I accepted the application, the applicant mentioned to me his checks expired so applicant can only do cash payments. I stated on application and lease that I don't accept cash. I only accept payments through Cozy. Can I deny applicant if they don't want to pay via Cozy? They haven't signed the lease yet.