How to keep Ads on Bing longer

I have seen a few spam ads on Bing (uk bank mainly) and they have been on for a whole day. I filled it in and the owner contacted me. So I asked him how he does it but he's not willing to share. Any help or advice here please? He said he used a script and he didn't use Bing account also that it's spam is not Ads. It just appear on the ads network. Lol please comment below