ESA Supersession payments

Hi, last year I requested a supersession on my claim for ESA. I was in the CB WRAG until 2012, when I was no longer paid any benefits due to the one year rule. Since then my claim has continued and the DWP have been paying my National Insurance contributions only.
As my health has not improved over the 6 years of my claim, and in fact in the past year has substantially worsened I requested a supersession and asked to be placed in the SG. I then filled in a new ESA50 and provided plenty of supporting evidence.
Today I spoke to someone at DPW and ATOS to find out how things were going. The good news is that my claim has been looked at by ATOS and they do not need to see me for an assessment, but have decided to support my view that I be placed in the SG. Now the file has gone back to the DWP for their decision makers to look at.
The bad news, that came as a shock to me, was that the woman at the DWP told me that even if I am placed in the SG I won’t necessarily begin receiving payments again – that it is up to the decision makers if get any money at all. She then talked about backdated payments, which I am not looking for, but I was surprised as I am sure I read on their own website that if successful in the supersession benefits would be re-instated, but that back payments where at the discretion of the decision makers.
She explained that it was because my payments had stopped in 2012 – if I had applied for a supersession then and been placed in the SG my payments would have continued, but as it stands now they may not pay me anything, even if placed in the SG.
Is this correct?

Thanks for the reply...I did think it sounded fishy. I have to wait now until Feb 12th for a decision. Fingers crossed.

Yet another example of misinformation from a DWP call handler. I do wish they would simply say that they don't know, rather than making up stuff that misleads the claimant

Yes - I agree, and I asked her three times to confirm it.