Hi Wilson28
ESA is generally reviewed after 1, 2 or 3 years. You are just unlucky; yes, they send them out at any time. I'm sorry you have to do PIP and ESA simultaneously - and this is also something that happens to many unlucky claimants.
You ask if you should leave the DWP to do their own research. Absolutely not! It is unlikely they will do it; if they do, you have no idea where they might get their information. Provide the information from reputable sources and highlight how you are affected against the specific ESA criteria.
They won't know you are being reviewed for both. It's up to you whether you say anything. At the end of the day - although there are some overlaps, the two benefits are looking at different things.
BIS
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