What bank does OppFi use?

I'm curious to know which bank OppFi utilizes for their financial operations. As a company specializing in financial technology and providing various lending solutions, it's important to understand the institutional backing that they have in place. Can you clarify which bank or banks OppFi partners with to facilitate their services? This information would be insightful for anyone interested in the company's financial stability and the partners they choose to work with.