Steve1878 Cross

I sent a cheque representing 3 years NICs by registered post to HMRC on 3rd November 2024. I wrote my National Insurance number and my 18 digit payment reference on the reverse and included a covering letter explaining what the cheque was for. My cheque was cashed on 12th November 2024 but to date my state pension forecast has not been updated. When I rang HMRC yesterday, they could find no trace of my cheque despite the payment having been taken from my bank account! I was told that the matter was being forwarded to a different department and that i was to phone back in a couple of weeks for an update if i didn't hear anything. I am obviously worried and stressed as to what has happened to my money bearing in mind HMRC have clearly received and banked my cheque. Any help would be appreciated. Thanks.