A family from Newport has said their five children were left in tears when their Christmas trip to Disneyland Paris fell through, even though they they paid out nearly £2,500.
The tour operator, Day Trips Newport Ltd, which advertises on Facebook, has told ITV News several other families also had their trips cancelled.
Gwent Police has confirmed it is aware of complaints.
Darren Small, 38, broke the news to his five children that their festive holiday to Disneyland Paris was not going to happen.
Production worker Darren said he feels like he's let down his children.
Darren, from Newport, said he began to worry when he asked the company for details of his booking before the planned trip this weekend.
Darren was informed that the trip was no longer going ahead by Day Trips Newport Ltd - and that the matter was with their insurance company.
Day Trips Newport Ltd operates using a Facebook page and says it organises coach trips from Newport.
In a statement to ITV News, Matthew Neale from Day Trips Newport Ltd said it was working with its "insurance company to retrieve the money".
A spokeswoman for Gwent Police said it is aware of complaints and is looking into whether any criminal activity has taken place.