COD Order Confirmation IVR System Development

I am looking for a developer or IVR automation expert who can provide/build a COD Order Confirmation IVR system for e-commerce sellers in India. Requirement: 1. Seller uploads customer order list in CSV/Google Sheet: * Customer name * Phone number * Order ID * Product name * COD amount * Address/city optional 2. System should automatically call customers and play this message: “Namaste, aapka order confirm karne ke liye 1 dabaye. Order cancel karne ke liye 2 dabaye.” 3. Customer input should be recorded: * Pressed 1 = Confirmed * Pressed 2 = Cancelled * No answer * Busy * Wrong/invalid number * Failed call 4. Seller should get a report in Google Sheet/dashboard: * Order ID * Phone number * Call status * Customer response * Call time * Retry count 5. Features needed: * Bulk calling from uploaded CSV/Google Sheet * Retry failed/no-answer calls 1–2 times * Hindi voice IVR * Basic dashboard or Google Sheet report * Ability to change IVR script * India calling support * Compliance-safe setup for calling only customers who placed orders 6. Preferred platforms: * Exotel / Knowlarity / MyOperator / Twilio / Plivo / any reliable India IVR provider 7. I want this as a white-label/resellable solution, so I can provide it to multiple sellers. Please tell me: * Can you build/provide this? * Which platform will you use? * Setup cost? * Per-call/per-minute cost? * Monthly maintenance cost? * Time required to deliver? * Can you provide demo? * Can this handle multiple sellers separately?