Perpetual CS5 license blocked by disabled activation servers - Account shows 0 active devices

Hello,

I am writing here as a last resort because Adobe Tech Support (Case ADB-45766930-K7T0) has officially closed my case, stating they cannot help me.

I am a legitimate owner of a perpetual Adobe Photoshop CS5 license purchased back in 2010. Recently, I needed to re-install it on my computer (Windows 11 Pro). When I try to activate it using my official serial number, the installer throws an error: "Osiągniętu limit aktywacji" (Activation limit reached).

However, when I log into my official Adobe Account panel, under "Activated Devices" it clearly states "Brak aktywowanych urządzeń" (0 activated devices). The old machine is long gone, so manual deactivation is impossible. 

The Support Manager officially informed me via email that because the CS5 activation servers are retired, Adobe will not restore functionality or provide a workaround, and instead suggested I buy a Creative Cloud subscription. 

I bought a perpetual license for a reason. I only use basic, simple tools for my business and do not need any modern Cloud features. "End of Support" should mean no more updates, not the remote revocation of a lifetime license I legally paid for. 

Is there any Community Expert or Adobe Staff member here who can provide a legitimate technical workaround, a special offline installer, or an activation bypass for legal owners whose software was rendered useless by Adobe's server retirement? 

Thank you,
Grzegorz