Beware of scammers
It has already been explained to you why your transaction did not go through and how you can fix it. If you have any further questions, please post them.
However, I would issue a warning here: If someone contacts you and offers to help you, check their profile and only let people who have a good reputation help you. Otherwise it can be that your counterpart wants to cheat you and demands e.g. payments from you. Do not go on it in any case and / or post such requests here in the thread to let it be checked by several people.
Beware of the scammers could probably be the most important thing to say to a newbie because there are so many newbies who also fall victim to scammers that look like a real business. Everyone thinks that a scammer looks like a shady person who tries to convince you, whereas you could fall victim to scamming even without talking to anyone.
You look for something, let's say something that speeds up your transaction, you send some money to them, and then they just take your money and do nothing, that's a scam too and nobody convinced you to give your money to them, you just checked the website and thought that was a legit business when it wasn't. So always make sure that you use things that are proven to be working fine.