Godaddy can not add GST in the bill from Indian Customers

On 15 August 2017, I made an order on Godaddy. Godaddy is an MNC and they didn't provide a proper invoice. They didn't mention their or mine GSTIN on the bill but they added 18% GST.

I called the customer care of Godaddy. They refused to help.
Then I took the case to Godaddy on Twitter.
Moral of the story, you need not pay GST to Godaddy or any other MNC if they don't mention their GST number on the bill.