Hi ginger
You can try and argue this fact, we have produced an overlap guide in the Members Only Guides called
UC/ESA and PIP overlap.
To be placed in the SG he needs to meet one or more of the SG Descriptors, have you looked to see whether this is the case or note, the Descriptors are listed in our ESA Claim guide.
www.benefitsandwork.co.uk/help-for-claimants/esa1 Gary