Hi Jane52
As you rightly stated, as you are in receipt of PIP then the benefit cap does not apply, there are other benefits where the benefit cap does not apply.
The benefit cap does not apply during a "grace period " This is a period of nine consecutive months, which begins on either;
~ the first day of the assessment period during your currentUC award in which your earnings are less than the earnings exemption threshold that applied at the time; or
~ the day after the day on which you ceased paid work prior to your current UC award,
whichever is most recent. in each of the 12 months before the first day of your grace period, your monthly earnings must have been at or above the earnings exemption threshold that applied at that time.
PIP will not affect you UC claim.
Gary
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
