When will my payments be credited to NI record?

I paid class 2 retrospectively to fill gaps in 2016/17 contribution record on 7.2.24. When will they be credited. Although I have 49 years my State Pension was reduced in December and I want it back! Will it be backdated?

Hi Joanie Mansfield,
The timescale tool shows that self-employment services are currently working on work dated 29/5/23.
If you are already in receipt of their state pension the NI Office will deal with it urgently, you would need to call 0300 200 3500.
Thank you.