WCA Assessment form ANNUALLY??

Hi , I have just received un unpleasant WCA form, a year to the day of my last one. I receive ESA Support group and Severe disability premium + PIP with enhanced mobility and standard daily allowance.
I battled for most of last year and with the help of your guides got through the maze of forms and was successfully awarded the above.
Can you advise me, is this going to be a annual assessment now. I would be interested to know if any other claimants have had this experience. any advice would be most helpful

ELE

ESA reassessments can be initiated at any time after three months have elapsed from the previous Decision and up to two years for the WRAG and three for the SG.

The period is based on the prognosis recommended by the assessor and should be a reflection of the claimant's conditions changing or they're adapting to their limitations.

Gordon