Unfortunately, I’m pretty sure centres can only offer A level exams in May/June as they run in series i.e. 2024 May/June series. Because exam boards don’t write papers or lay on exam series (including timetabling, distribution of papers, marking and releasing grades) at other times of the year, centres can’t just choose to offer exams then of their own accord.
Unlike GCSEs, there is no November resit series, so while if someone knows of a way you can do this, which would be great, I wouldn’t get your hopes up I’m afraid. Sorry to be the bearer of bad news, I hope things work out for you in the end!