In the discussion you are pointing to, we have clearly stated:
The same warning is being included in the introduction e-mail sent to users paying for this package.
It is unfortunately not possible to remove the exceeded area as it has already been ordered (and thus included in the “hectares under management”.
We woudl therefore kindly recommend you pay the overage (use the “top-up” option, to have a co-term discount).
We are aware this is not the perfect user experience and we are working to improve it. However, we do depend on the 3rd party data providers and their capabilities.
Sorry for the inconvenience.