Extracting Report Info Programmatically with C#

I am trying to extract report info programmatically using C#. However, I am having trouble using reportingService.SubmitGenerateReport, as it generates the error "object reference not set to an instance of an object." I have also tried using PowerShell and Python, but they did not work for me either. Additionally, I cannot get a simple SOAP request to work using SOAPUI, as it results in an "internal error" message. Is there a clear, working example available online that I can utilize to report on clicks for yesterday using a campaign name filter across all campaigns on the Bing Ads account? I find it much easier to do this on Google Ads and do not understand why BingAds is so difficult to set up.