Looking after family

You do need to discuss a family budget while they are with you, for food, extra electricity etc.
Do have any means of support or are they also dependent on you?

I agree with the others that there is not enough information to know what to think. How old are the children? Does your son send them any money, or does he expect you to support his family? Are there cultural expectations at play?

You say that your DIL 'is not working yet', which suggests that she is looking for work. Who will look after the children when she finds work, or are they old enough to look after themselves?

Take it up with your son.

What was the agreement before moving in?

How was this not discussed before they moved in? Why did they move in? Not sure what you can do now. Does your DIL think she shouldn’t be paying at all, or it’s too much? Why can’t your son send the money? Presumably, he’s no house of his own to pay for. I think we need more info.

I’m sorry I misread your post pls ignore my questions .?

Whatever the reason for them moving in with you, they need to contribute to the extra costs involved. Apart from the obvious things like food, there are increased fuel costs due to additional showers, washing machine, dishwasher etc. If your son is working in Africa, surely he is not leaving his family penniless?

No one, whoever much she loves her family, should be expected to support them like this. They should be contributing to food bills, at the very least. What were they living on before?

100 pounds a week for three people, assuming that covers rent, power, water, internet, food, use of appliances, etc, is a pretty good deal. Yes, this should have been agreed before they moved in. If they won't contribute you have a choice to either tell them they need to contribute or need to move out. What is the objection or barrier to the payment? Is there room for them to negotiate?

More information needed here please. Why have your family moved in with you ? How do you arrive at £400 pm seems a bit steep although I agree they should contribute towards living expenses and help with housework etc.

Not enough background information.
If you can afford to house them and as you say you love the grandchildren.......why complain?

They refuse? As vegansrock said, this is a conversation that should have been made before they moved in. Surely they will at least contribute to the food bill?

I’m puzzled as to what ‘all the extra bills’ are? Surely if they living with you now they would now be less?

Why have they moved in with you? Is it because they are hard up? Is it an emergency.? Surely this is a conversation that should have come earlier.