FlightCancellationStatistics does not work

i just tried to make as per documentation

The offset does not change the results. Tried without offset, with offset to 0, 15, 30 or 200 or any in between the API always returns the same 15 results. The first today being “British Airways” with any offset results are always the same 15.

Am i doing something wrong or is this a new of the many errors we get with these APIs? they look quite bugged.