Pip backpayment

If you're referring to the changes in law for either following and planning a journey and social support (engaging with others) then the changes will have applied to all new claims from September 2020.https://www.gov.uk/government/publications/personal-independence-payment-changes/social-support-changes-to-pip-law-from-6-april-2016#:~:text=If%20someone%20needs%20'prompting'%2C,help%20engage%20with%20other%20people

https://www.gov.uk/government/publications/personal-independence-payment-changes/overwhelming-psychological-distress-and-journeys-changes-to-pip-law-from-28-november-2016#:~:text=follow%20a%20journey.-,Change%20to%20PIP%20law,the%20mobility%20part%20of%20PIP%20.

If you disagreed with the decision at the time it was made you could have challenged that.

gemd said:

Thank you so much.. even though mine was a MR success 

If that claim started after September 2020 then they will not review your claim.