Salary guide - Semi Senior Accountant

I feel like i’m underpaid but wanted to see what your guys opinions are…

4 years worth of accounting experience, started off as a trainee and now a semi senior. I’m AAT qualified, have completed ACA certificate level & have also sat 2 exams so far at professional level.

My current pay is £27k but I feel like it should be around £30k or so - am I being unreasonable with this goal? Keep telling myself to crack on and just get qualified asap when I know it’ll increase significantly.

Based in Berkshire

Would appreciate your thoughts

Cheers