I bought historical subscription couple of week post base subscription, so the dates are misaligned... why is addon not prorated? Or it remains active even after base subscripton expires?
Add on subscription will be active but you will only be able to use it if you have base subscription. If you subscribe for Kite Connect, you can use historical data API till 28th June 2024.
So, now my base subscription and addon subscription are forever out of sync