 Bustlers also covered much of the Rhymney Valley when Inter-Valley Link Ltd (former Caerphilly UDC, Gelligaer UDC, and Bedwas & Machen UDC) operations went into receivership.Bustlers also entered Merthyr Tydfil in a big way causing a financial crisis for MTT, the privatised council bus service.All the Merthyr Tydfil Transport bus drivers resigned en masse and joined National Welsh as a block Bustler team.