I paid my Nanny cash can I deduct that as Dependent care?

I paid my Nanny cash/check/bank transfer for her services. It was not regular schedule and just on call basics. I paid her $1000/mo and sometimes $500/mo. In 2019, it was totaled $15000. I have two kids under 9. 

 

Can I claim this as dependent care?


Kids also went to Montessori school. $12000/per child. ($24K both)