Having the house insulated by the Netherlands last...

Having the house insulated by the Netherlands last year insulates.
Never have to do it!
Someone has been there to record and explain everything.
This was all fine. It needed 90 m2 of insulation.
We thought that would be fine.
They spent more than half a day here, drilling holes, injecting insulation ... We thought .....
At the end of their work, they said that 20 m2 had already been insulated, this would be deducted from the invoice.
I received a full invoice and when I called about it they suddenly lost the work order and we just had to pay everything. At that time we were not so happy with this company anymore ....
Coincidentally, we started last month with a major renovation that also included a very large piece of exterior wall.
The contractor was informed that insulation had been sprayed into it so that he could take it into account when breaking out.
What astonishes our surprise ... The outer wall went out and it was completely empty .... No scoop of insulation to be seen ... No further look immediately .... Nothing, noppes nada !! Only in the facade was some injected and the rest of the house was completely empty .... But the full bill to pay !!
Call again !!! They went to send someone because they could see on the work order that the whole house had to be full (it was lost anyway ????)
They have been back .. best men who came here could not help it (although I would not want to work for such a company during my life days)
These boys have still sprayed 70 meters !!!!
When they left they left our total parking lot with mega oil stains!
Insulate the house, good idea !! The Netherlands isolates, NO !!
These are pure scams!