Unbounce Not Recognizing %3E character in URL parameters

From Bing ad clicks we passing campaign parameters that include a %3E that we want recognized as a “>”

example utm_campaign=BingClick%3eExact is passing as BingClick%3eExact and breaking our Bing ads conversion script.

This issue isn’t happening from our Adwords clicks. It passes as BingClick>Exact

Any idea if we can change the handling of that parameter in scripting?