I need a little advice on my application. I have submitted the online form FLR(M) to extend spouse visa. However, after submitting the form and paid the fee, I realised that the IHS reference I provided was wrong (I input the previous IHS reference used for the initial spouse visa).
After realising the mistake, I continued to make an IHS payment manually, thinking that I can make the correction on the printed copy of the form.
I then realise that they don't actually require us to send the printed copy of the form on the new system, only the supporting documents. I am now confused as to what to do with this situation? Has anyone have any experience or advice in how I should proceed? Will they accept it if I send a cover letter and print the new IHS confirmation e-mail? It seems a bit too much if I have to cancel the whole application just because of a slight error on the IHS reference (I read online that cancelling will not return back the fee I paid, which was not little - £1033)

Any guidance is greatly appreciated.
Thanks!