IPad – Software Glitch iPad 2 Caused Activation Lock

I’m very new to this thread and I hope I’m in the right place for help.

I’ve got an iPad 2 WIFI only model and have an issue, some time ago whilst I was using the iPad it suddenly and out of nowhere went to an activation required screen.

I believe this to be a software issue as the iPad hasn’t gone to the very beginning of the setup process, I’ve attached 3 screenshots showing what it does.

When I turn on the iPad I can see my wallpaper I’m required to enter my PIN to unlock but after that it goes straight to an activation required screen. Unfortunately it’s been years since setting up the device and as I’ve never had need to use iCloud password as I’ve got a seperate iTunes and App Store Apple ID have forgotten it. I can’t reset the password as I’ve got two step verification setup and I can’t find the recovery key, and unfortunately when two step verification is activated Apple automatically take away elements of the account recovery process. I no longer have the option to reset the password by answering security questions, recovery email or even submit an account recovery request.

Unfortunately Apple won’t assist me without proof
of purchase and as I purchased the iPad in Oct 2013 I’ve found it impossible to get a copy of an invoice from the supplier thus no help at all from Apple.

As the iPad still has everything installed on it is there some way of extracting the password by some means.

Is data extraction or connecting the iPad to my iPhone Wirelessly to access the iPads data even possible?

I’d appreciate any assistance anyone could give me.