Were you awarded a MPhil instead?
No, looking into it now but might have been too long. Mind you, first year of the course was an MSc by research (which I do have).
Received this interesting little note today from an official site. Might be of use to someone else too.
[b]if you have carried out part of your doctoral studies in UK you may try to have the credits recognised towards a doctoral programme in Poland. In this case you have to contact the university. In Poland one can start doctoral proceeding without having done doctoral studies. According to art. 12. of the Act of 14 march 2003 on the academic degrees and the academic title as well as on the degrees and the title within the scope of art.
The degree of doctor shall be awarded to a person, who:
1) holds a professional title of magister, magister inżynier, lekarz or another equivalent title;
2) has passed successfully doctoral examinations within the scope defined by the council of an organizational unit;
3) has presented an defended a doctoral dissertation.
The doctoral examination shall be held in the scope of:
1) basic discipline corresponding with the subject of the doctoral dissertation;
2) additional discipline;
3) modern foreign language.
In this case you have to go directly to the faculty or scientific institute authorised to award a degree of doctor.
More detailed information regarding recognition of foreign qualifications in Poland are available on the following website:
nauka.gov.pl