www.iva.co.uk

My partner has left her job stepchange took her income at the time amd used this as household for iva do i need to tell them this her monthly icome was 350

It may make a difference as your household income will be less. Can you afford your payments without her salary? How will it affect your household expenditure on normal household bills?

Can they ask me to claim universel credit?

They may do. They are entitled to make reasonable requests and maximising income when you are fighting debt seems reasonable.

For uc has to be joint applicATION partner is unwilling

You are going to have to sort this with Stepchange. Is your partner likely to get another job?

No

Any reason why she won't? You are going to take it up with Stepchange.