AITAH for urgently wanting to get a PS3 with my money?

I (18) have been wanting to get a secondhand playstation 3. One reason it's my favorite gaming console and it's pretty cheap nowadays.

A week or two ago my uncle visited us and gave me a 100 Euro bill. Now that is a pretty good money because that roughly is 5600 in my currency which is perfect because a listing I saw was at 5250. I thought about just converting the 100 Euros and buy the ps3 before someone else does it.

But my parents say "Give that 100 Euros to us and we'll give you 6000 instead." Now I gave the money because I trusted them and it sounded pretty reasonable so I agreed. I gave the 100 euros and waited for my 6k.

But they didn't give it right away. They said "You should use this money to buy yourself new shoes and clothes" But I already had a nice shoe and a good few clothes so I didn't felt the need to. I asked about the money a few days later and they asked me why I wanted to urgently. I told them about wanting to get the ps3 and they said "You're grown, what do you even need that for? You shouldn't waste your money" etc etc and I didn't get the money.

Now I am annoyed because it's not *their* money I am asking. If that were the case I would definitely shut up. But the money was given to me. Plus they did say "It's your money and you can spend it to your liking." If they had just told me they needed the money I'd gladly give it to them. And now we're in this tense moment where I am obviously annoyed and my excitement is mostly gone. And they don't seem to be giving the money anytime soon either. Am I wrong for trying to ge the money that urgent or should I just be patient and try to convince them?