No strictly true. The first two times they were at the holding point for 28 (at 00.20 and 00.28). Surely you cannot refuse to vacate a runway that you haven't entered.
Nevertheless, the ATCO issued an instruction, regardless of its content, 3 times. On all 3 occasions this was ignored and not complied with. That is the issue, regardless of what the instruction was or what it concerned. It was not complied with and there was no apparent/justified cause of the non-compliance.
