Do not assume an ordinary drain-clearing method is approved for the unit and its connections. Pressure can affect components beyond the visible bowl.
What the observation means
A toilet obstruction and a pump or discharge fault require different assessment. Repeated force does not identify where the problem lies.
A useful next step
Stop adding water and consult the exact manufacturer's guidance or service team. Avoid improvised rods, compressed air and chemical unblockers. Explain what has already been attempted so the assessment accounts for any changed conditions or potential connection damage.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.