For the past month I have been struggling to resolve a problem with an increasing number of 404 crawl errors in Bing. (Only Bing reports these error, not Google and not Moz.) I did receive email from them requesting a server log (which I have now sent 5 times.) Their response, please send a server log. The last email I sent (6/21) explained there should be server log attached, if they did not get it, not why not? Do they have a restriction on file size? What other compression types do they accept? It has been very frustrating to deal with them and all of their responses are between 9 PM and midnight. Almost a week later, no reply.
Any suggestions how I can get out of this seemingly endless loop and get a helpful response during normal business hours (PDT)?