J
Welcome to the forum
In case you are not aware, your real name appears to be showing in the forum, if you want to change this then follow the instructions in the following FAQ
My full name is showing, how can I stop it?
PIP is not a means tested benefit so will not be effected by any pension you take.
If you are
only receiving ESA(CB) then a lump sum will have no effect on ESA, if you have a regular income from the pension then it may affect your ESA and you will need to inform the DWP.
Gordon