March 26 (Reuters) - UK's Office of Communications:
* BT to be fined 42 million stg for breaching contracts with telecoms providers
* penalty is a result of an investigation by Ofcom into BT's network arm, Openreach.
* UK's Ofcom says investigation finds bt cut its compensation payments for delays in connecting high-speed business lines
* BT will also be fined 300,000 pounds for failing to provide information to Ofcom Source bit.ly/2nY7Xdv