Just an update on Goldcolor - I paid 50TL (about €25) for 5 rolls of 120 to be developed. I'm very pleased with the results.
I also paid for the films to be scanned - but here I'm not so happy - in fact they were not good at all. I'll be giving feedback the next time I visit.
Thanks for the tip Ooze.
BTW, seems they also process sheet film as well - now just to find a source anything other than B&W!