What is Sonata Software?

Can someone explain what this company's relationship is with Microsoft? Opening tickets on an enterprise Azure sub and getting techs from this company 'Sonata Software' which appears to be a completely distinct company based in Bangalore. Has Microsoft outsourced its own support? So far the experience has been abysmal, not sure if they're only engaged for ADF or all of Azure but either way it's kind of crazy MS doesn't even have MS employees providing support for Azure products.