u/BreyerDash

I was off 1st-9th April with sick pay, I handed the sick note into my manager on the 1st and he didn't authorise it until the 13th April, thus I missed getting it on last months pay check and he said it would come through on this months....and it's still not in my pay check this month. I disputed it with HR and they said I have to go through it with my manager again, which I have and still no response. Any help on what to do, where do I go now?