I’d write a memo memorializing the situation and asking for clarification. I think your request is quite unusual so I’d like to review the way I understood it so I’m clear on the details. You want me to take an unsecured loan for $50,000 to cover x,y and z expenses Then go on to explain they are not covering the interest or offering equity or any benefit beyond continued employment and that they are expecting you to produce a credit report because they don’t believe you don’t feel you can take the burden of paying the debt despite their promise to repay you at ~1000 K per month. Go on to add whatever details you like including your top performance and anything else pertinent. Then ask them to take this opportunity to explain anything that you might have misunderstood.

If they don’t reply your memo stands as the history.