The one year rule that they seem to be saying is absolute tosh. The LGPS website states quite clearly that deferred pension benefits can be paid early " on Ill health grounds at any age, without reduction, if you are no longer capable of performing the duties of your old job. You should contact your former employer to arrange a medical if this applies to you "!
Last year I was awarded I’ll health retirement from the NHS ( tier 2 unadjusted ". I had two deferred pensions, a private sector one who carried out a medical assessment through their Occ Health service and an LGPS one who merely accepted the evidence file I sent them, including he assessment that was made to grant me Ill health retirement from my current NHS employment. They put my LGPS pension into payment from the date when I originally applied.
If you need any hands on help then give your Local Citizens Advice a call and they should jump at the chance to help you (I work at CAB and our Office would certainly provide support). That being said, you shouldn’t need any help with this. I’m sent my old jokb description in with my medical evidence file and I had to complete a standard form requesting early payment of my pension due to Ill health. This was sent to the LGPS scheme administrator linked to my previous employer. They then passed this on to my previous employer for a decision. As it turned out they simply accepted the evidence that I had submitted without any need for any additional medical assessment.
The key factor in their decision process is whether you are incapable of being able to carry out the duties of your employment with the LA organisation you worked for, up until the date that you would have normally retired. This is assessed on something called the Civil Burden of proof, which is simply the balance of probabilities.
So, I would get back in contact with the LGPS scheme administrators and ask them to send you their standard form to apply for early payment of your deferred pension on the grounds of I’ll health.
Go for it and get the pension payment that you are fully entitled to!!