Verify income source ~ again?

So having successfully been through the verification process last December (as described in this thread) my limits were raised accordingly.

Now my top up limit has been reduced and the app is saying I would need to verify the income source again as the reduced limit is approached.
Why has this happened? I thought personal verification and verifying income source was a once only process. I suspect non premium user downgrade!

I went on the support to ask about this, the robot said a live agent would contact me. That never happened as support for the non premium minions finishes at 6.00pm.

Hey there! Hmm we can certainly look into this for you. If any updates were made to the account then this may inflict a change in the annual limit. I have written you a private message to get your account information.