So I notice the following and I have no way to contact MS. So since they don t make it easy for me to post... I ll tell them the issue here
I have a migrated account (so old bing api account)
Doing a Bing Search API call to https://api.datamarket.azure.com with this path /Bing/Search/v1/Web will return a 403.. doing it /Bing/SearchWeb/v1/Web works fine
I have a new Azure account
Doing a Bing Search API call to /Bing/SearchWeb/v1/Web will return a 403.. doing it /Bing/Search/v1/Web works
Clearly something is messed up somewhere and not documented correctly. is this a known issue?
The only way I figured it out was because your tools for testing the API showed a different URL which I was quite puzzled about..
Manu