is it possible to put money into like a trading 212 account without buying a share?
you can hold free funds in your account without buying any shares. however that money wonât earn you anything either
What if i want my trading 212 account to hold on to "real"money which is not spent on a share
like an another bank account?
I canât say the same thing 3 different ways. 
The funds in your account ARE âreal moneyâ. T212 does NOT run a âsavings accountâ, so you will not gain interest on the money you leave in your account un-invested. I could leave ÂŁ1000 just sitting as free funds in my account, but I wonât get paid anything for doing so.
there is nothing forcing you to buy shares once the money has been put into your account, just be aware that if you donât want to invest the money and you just want to store it in an account, youâre better off going to a bank instead.
Just do yourself a favour and get verified BEFORE trying to deposit money into your account, that way you donât tie up any money and have issues waiting to see the money enter your funds balance.