As I have told many times very sorry for WIFI problems, but really I'm surprised to read that you did not believe that the problem was due to the work they are doing on the road, which by the way were right next to the building.
Unfortunately it did not depend on me and of course the only thing I could do was solicit every day the assistance that was already dealing with the problem and make my phone available free of charge to allow you to make phone calls.
I am also surprised that you complained about the lack of dish soap, if you had asked me I would have told you that it was in the door under the sink. As for the detergent for the washing machine ... it is an extra service that I could always make available, but in reality it is difficult that the Guests spend time doing laundry ...
I personally prefer to offer them the WELCOME PACK for the breakfast, a good bottle of wine to welcome them, an excellent and serious transfer service and much more ... what a pity that this was not appreciated !