Mornin' Vicky
It's quite natural to have fluctuating emotions at a time like this and you need to look after yourself first and foremost.
You have had a lot to cope with as a family. In recent times you have lost your mother, your childen have lost their nan and your dad has lost his wife ... you have also 'lost' your husband ... I actually think divorce is as bad as bereavement and we forget that we need to allow ourselves to grieve for the end of a marriage ... your chilren have also lost a father in many ways and your dad a son-in-law. In addition your health is another loss as you have had to face not being the person you used to be.
I would support Chris and Viki's advice here ... don't pay any more to your creditors at the moment until you have taken professional advice ... this doesn't seem to be working, and having come to this conclusion yourself it would look as if your were favouring one creditor above another. One of the reasons I said about giving your dad his money back now is that it would help it to look less like disposal of assets in the future.
With the receipt of the letter that started the panic yesterday the situation is now moving outside of your or your father's ability or know how to address it ... and so, as Chris advised, try to take it one step at a time and draw on some professional help now, someone who can hold your (and indirectly your dad's and your children's)hand a little now and give you sound advice.
Here is the link to Paul Johns (Reviva) page which includes a link to his website
http://www.iva.co.uk/forum/pop_profile. ... ay&id=5002
And here is the link to Melanie Giles profile
http://www.iva.co.uk/forum/pop_profile. ... lay&id=525 which also includes a link to her webpage.
I am sure that both have someone manning their phones today ... so make a call Vicky and get someone on your side to give you some sound advice ... rather than trying to sort it all out as a family yourself.
Take care.
Debbie