Well it seems to be quite expected .... The site owners also have rising costs ... fuel to heat the water has risen, fuel to power the mowers has risen, rates have risen, electricity has risen, wages have risen, everyone demands more from the sites .. that costs more to provide ..
It is simply extremely shortsighted to think that all the rising costs YOU face everyday don't apply to site owners... sometimes their rises are far larger, as businesses, than you pay on a domestic front.
In other threads folks are demanding that waste points be "remodelled" to make life "easier", that showers and toilets are mended within 15 nanoseconds of them breaking, etc etc ... just where is the money for that to come from ... ???
These sites are not charities .. they are businesses.