fout internetkosten fout 3G data

Having seen all the reactions about the wrong cost for internet I have investigated it myself.
Being a new user it was very easy to do.

When 100% on Wifi and the celluar data/3g is set to ON on my iphone....SImyo IS counting this data traffic as used on the 3G.

THIS IS WRONG!!!!!! Wifi data IS NOT 3g data!!!!

When 100% on Wifi and celluar data/3G is set to OFF on my iphone.....there is of course NO data traffic for Simyo.

The explanation for this in the forum is ....that the Wifi is not available and the 3G 'kick-in' ....is of course complete RUBBISH!!!
Even sitting next to my wifi router.....Simyo STILL counts it as 3G data

Only 2 explanation for this:

1. There is a MAJOR problem with the way Simyo identifies 3G/Celluar data thus making it impossible for them to recognise the difference;
2 This is a way for Simyo to make money!

Either way , I have stopped my abonement ( after 2 days) since I can not be ceratin of their charging structure !

Thanks 
Paul