As a result, both its new and existing subscribers now have internet access at twice the previous speeds and for the same price.
They can also receive triple play services for a lower fee for the first three months than previously.
The promotional offer includes a total of six double or triple play packages, with previous Fiber Power speeds being increased from 30 Mbps to 60 Mbps and 60 Mbps to 120 Mbps.
All the packages give access to the on demand service UPC na Zadanie, up to 28 HD channels, free analogue TV, free WiFi and Premium HBO free of charge for one month.
UPC Polska is the leading cable operator in Poland and claimed a total of 1,463,800 subscribers to its services as of the end of Q3 2012.