I wanted to transfer here from another Uni.

I wanted to transfer here from another Uni.
I asked them if I could get an acknowledgement of the credits I have obtained at my previous institution.

They told me:
1. I have to enroll and pay first
2. Then I have to apply for the acknowledgement of the previous career
3. Finally, no certain outcome is guaranteed, but "Professors are very understanding people"

Is there a way to get an agreement before payment? Apparently not. This is ridiculous because why would someone transfer to a Uni that says "pay me first, then... maybe... we will certify what you've done".

The second star is because they answered promptly.