underpayments ESA payments
Good morning. I need some advice regarding my ESA.
Until September 2015, I was getting Industrial Injuries Disablement Benefits too. Hence, my ESA allowance was reduced accordingly.
When I stopped receiving the IIDB, I contacted ESA to let them know and to reassess my allowance but they asked me for a confirmation letter from the IIDB. I requested the letter several times over the years as I couldn't find the one I received previously but they never sent me the letter.
On February last year, while going through all the benefits documents I found the letter from the IIDB confirming that they were going to stop it. Hence, I sent a letter to the ESA together with the tribunal decision but I never received a reply till today but they are only giving me back payments from February 2019.I am wondering, if I am entitle to back payments since my IIDB was stopped in Sept 2015 or only since the ESA received my letter in Feb 2019