I just got this information from Stepchange today. Unsure if it applies across the board, but worth enquiring if you are a key worker on overtime.
"I'm a key worker. Do I need to pay more into my IVA?"
If you're a key worker, you don't need to make additional IVA payments during the coronavirus crisis if this is as a result of working overtime. You just need to let us know at your annual review, or when you next send pay slips to us, that you're a key worker, and provide evidence to support this.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk