PharmEasy — Did not deliver my medicines

I ordered some medicines for my grandparents . Pharmeasy app showed the delivery to be done in 3 days but they kept on delaying it over a week and at the end when we called they said we will have to pickup from the nearest branch. Then why the hell I paid the delivery charges. Moreover my grandparents are I'll . If they could go to the branch then couldn't they go to medical store themselves. Why the hell would I have need to order it from pharmeasy fake promises.
It's worst service ...