Can unused tuition be used for zakat, by leaving with the institution?

Question:
I recently registered for an Islamic course, but was unable to go.
Instead of asking for a refund can I let them have the cost with the
intention of zakah? Also how much exactly is a ''zakatable amount''?
Answer:
Al-Salam `alaykum
It is a condition for the validity of Zakah that it must be given over
in ownership to a deserving recipient. Thus it cannot begiven to an
organization to be used for their expenses. However if the
organization collects Zakah to distribute amongst the poor and needy
then you can hand your Zakah to them for distribution.
I don�t understand what you are trying to ask whenyou wrote: "how much
exactly is a ''zakatable amount''?
If you mean the minimum amount that a person needs to possess before
Zakah becomes obligatory on them (known as Nisab) then this is an
amount that differs from place to place, and time to time depending on
the value of gold or silver. I suggest you contact any local `Ulama
organization and enquire of them the precise amount in your area.
If you are asking about rate of Zakah then it is 2.5% of all your
Zakatable assets.
Allah Ta`ala knows best.