The case is, Someone explain something to me, but such explanation is not the same as I was told before. For example, there's a policy in the company and someone explain to me how it works, but I was told by another person before about the same policy, and what they said are different.
Can I say "Your explanation is different from/to my knowledge of the policy."? I prefer to use the word "knowledge" in this case.
Thanks very much!