It is not necessary that you have to buy from Shopify. You can buy the domain from Godaddy or Namecheap and connect it to your shopify store. More information on how to connect it can be found here: ...
You can add (support@markace.com) as staff and give access to theme, products and apps section. Please follow the instruction in this article to give us access: https://help.shopify.com/en/manual/your-account/staff-accounts
It should work, if you have a valid debit card from HDFC/ICICI/Axis bank with international transactions enabled on it. If you still face issue, get in touch with Shopify support.
Install "Oberlo - Aliexpress.com Product Importer" (https://chrome.google.com/webstore/detail/oberlo-aliexpresscom-prod/hmanipjnbjnhoicdnooapcnfonebefel?hl=en) Google Chrome Extensions. Then follow the below steps to get products from AliExpress to ...
You can create your own discount codes in Shopify admin. This should be of help: https://help.shopify.com/en/manual/promoting-marketing/discount-codes/create-discount-codes Here is a good example of how to create a Buy 2 Get 1 Free deal ...