Following registration has come up on VOSA today:

PB0002717/335 - ARRIVA DURHAM COUNTY LTD, 1 ADMIRAL WAY, DOXFORD INTERNATIONAL BUSINESS PARK, SUNDERLAND, SR3 3XP

Registration Accepted
Starting Point: MIDDLESBROUGH
Finish Point: PETERLEE BUS STATION
Via: STOCKTON, SEDGEFIELD, WINGATE
Service Number: 21a
Service Type: Normal Stopping/Hail & Ride
Effective Date: 28-JUL-2013
Other Details: Every 60 minutes Monday to Saturday

Doesn't this exist already?.