Activation lock, purchase receipt is lost.
I removed my ipad from device list and did data reset on it. Now my device shows activation lock. I dont have any purchase details with me now as I had bought it in 2016. In fact the store where I bought it from also does not maintain purchase record for more than 2 years. Is there any other way to get it unlocked or restore old account ?
iPad Pro 10.5-inch, Wi-Fi