GMB union general secretary Paul Kenny and Ed Miliband are due to meet tomorrow in a meeting planned before today's decision to cut funding to Labour by £1 million.
A union source said its was made out of sorrow rather than in anger.
However, according to ITV News political correspondent Carl Dinnen, there are those in the Labour Party who thought it was a deliberate snub ahead of tomorrow's meeting:
More top news
Tiny Yorkshire Terrier, who survived an infection in the womb and was rejected by her mum, proves you do not have to be big to be tough.
The majority of parents forbid their child to walk to school because they worry for their safety, an exclusive poll has found.
Singer James Blunt has called his best-selling hit You're Beautiful "annoying".