Adobe Stock is currently only available in certain countries.
From the FAQ: Common Questions, Adobe Stock
In what countries can I buy Adobe Stock?
Adobe Stock can be purchased in the US, Canada, Mexico, UK, Ireland, South Africa, New Zealand, Australia, Japan, Netherlands, Norway, Sweden, Denmark, Belgium, Switzerland, Finland, Luxembourg, Germany, France, Italy, Austria, Spain, Portugal, Greece, Poland, Czech Republic, Bulgaria, Estonia, Latvia, Lithuania, Hungary, Malta, Romania, Slovenia, Slovakia, and Cyprus.
Im travelling to USA on work next week. Can I Buy / Licence image with my account while Im in the USA?
I'm afraid not as the country on your account (which needs to match your credit card billing country) determines what is available to purchase.
I am a CC subscriber. I am also interested in using Adobe Stock and I have an India account. By when do you think Adobe Stock will start selling online in India?
I'm sorry we don't have a date to share at this time.