I didn't submit my PIP review in time

Hi, I had enhanced daily living and standard mobility awarded after applying for PIP in 2023 and eventually being awarded the rates after a tribunal in 2024. My review came up in September 2025 as my award was fixed until Feb 2026. After not receiving the review forms twice I eventually got them, asked for an extension and the stress of ADHD resulted in me not getting the forms back in time so my award was ended in November 2025. I called the DWP, explained the situation and was advised to send the forms back ASAP so the aware could be reinstated and the award reviewed. After multiple health challenges I am only just getting around to this with a few days to spare before my award was due to end anyway. Does anyone have any suggestions around filling in the review form, or should I just start a new claim?