CWF1 form waiting times

I submitted my CWF1 form at the end of March 2024, and I still haven't heard anything back regarding it's processing and class II National Insurance. It's now August and I've still heard nothing. How long does this take? Thank you.

Hi Claire,
If you have still not received a reply then you will need to contact HMRC to review:
Contact details here:
Self Assessment: general enquiries
Thank you.