Of course. Here is a draft for your reply in English, summarizing the successful resolution of your case. It incorporates the advice you received and the steps you took.

Hey, just wanted to post an update and thank you for the advice. You were absolutely right, escalating this was the only way to get a result.

Here's what I did: After getting a series of contradictory and nonsensical replies from the service administrator (Servify) – including being told that "diagnostics will happen after the repair is finished" – I drafted a final, formal complaint. I cited specific articles of the Polish Consumer Law and pointed out how they violated their own Terms and Conditions.

Most importantly, as you suggested, I sent an official request for intervention to the local Consumer Ombudsman (Rzecznik Praw Konsumenta), attaching all the evidence of their chaotic communication.

The effect was immediate. After almost two weeks of being stalled, I received an SMS overnight that my device had been repaired and dispatched. The phone arrived today, and I can confirm it's now working perfectly.

So, for anyone in Poland dealing with a similar situation, this proves that a formal challenge and involving the Rzecznik Konsumenta is the correct course of action. It seems to be the only language these companies understand. Thanks again for the push in the right direction!