Cloudtail, Amazon's one private selling arm is not providing GST invoice whereas other sellers on Amazon is providing. I'm registered as a business buyer on Amazon's portal & I get GST invoices from all sellers except CLudtail. Can Cloudtail refuse to give GST invoice when my GSTIN is registered on the portal? Under what law/rule/section of GST can a supplier refuse to provide GST invoice to a registered buyer? If they can't refuse, what is the remedial action one can take? Can we report to any authority & ensure that they issue GST invoice to all?