IVA contributions gone up unreasonably!

karents

HI
I have an IVA taken out in November 2018. Initially my monthly payments were £85.
The monthly payment increased to £182 in January last year, then to £392 without sufficient warning; after the most recent annual review (Nov) payment have now increased to £505 per month.  I did challenge this, but they argued back and didn't provide an explanation.
I have checked my IVA agreement and it states initial payments will be £85 for 29 months and then increase to £267 for a further 31 months.
Can anyone advise what I can do?

sourcrates

If your income increases, then so do your payments, that is why its imperative the budget you fill in does not show a surplus of disposable income.

However if you remain unhappy, then make an official written complaint to your IP.

Debt Camel covers the process, here -

How to complain about an IVA (debtcamel.co.uk)