My misunderstanding - in reading that it had been “sold-on” - and reset subsequent to your daughter now having a new iPad.
Any ambiguity aside, unless you have the means to prove (to Apple’s absolute satisfaction) that you are the original owner - or have acceptable means to demonstrate legal acquisition from the original owner (e.g., the original sales invoice), Apple will not assist with removal of an Activation Lock.
For information, here are the Apple support pages that outline the Activation Lock - and the only mechanisms by which it can be satisfied:
Activation Lock for iPhone, iPad, and iPod touch - Apple Support
Turn off Activation Lock – Apple Support
As you will discover, unless you are the owner of the AppleID that was last used to successfully activate the device, or unless you can secure the cooperation of the previous owner, you’ll not be able to defeat or bypass the Activation Lock. Without documentary evidence that you are the original owner (such as sales receipt showing the serial number), Apple won’t assist - and nobody here will be able to help you.
If you have the necessary documentation, Apple have introduced a portal though which you may be able to request release of an Activation Lock:
How to remove Activation Lock - Apple Support & start an Activation Lock support request.
