I changed a choice in UCAS after the deadline I'm that stupid

So basically it's what the title says lol.
I sent my application the 14th but then I really wanted to change one of the choices and yesterday I did it.
Before that I emailed the uni but they take so long to answer that I was afraid I was going to miss the 7 days change.
I had 5 applications to 5 different unis and I changed an uni for another one, I already have applied for, so now I have 2 applications to the same uni, and the other 3 stay the same. (all courses are related obviously)
I know I could have changed just the course I already applied for but I didn't want to because I like it and I already had that application sent before the deadline, so I didn't want to lose it.

I know I changed it within the 7 days but it was days AFTER the deadline so... they aren't going to consider my new choice, right?
UCAS sent me yesterday an email of Welcome with the change I made... i don't know if that should mean something good or...

Hi Jack,

I'm not quite sure about if this will affect the application. I would recommend contacting UCAS directly to check as they will be able to advise on this and talk you through any other concerns.

Here are the UCAS contact details.

Best,

Patrick

It will only affect the 1 subject and as I stated earlier will depend on whether the course is full or not. @PQ who is involved in university admissions has posted this on another thread
https://www.thestudentroom.co.uk/showthread.php?t=5769608

For what it's worth - you have 14 days after applying to substitute choices (not 7) - you just have to call UCAS to make the change in the second week.

That's what I read in UCAS but I wasn't sure because I've read that if you wanna change a choice you have 14 days but if it's a uni it's only 7 days (?) or a general change is 7 days, i don't know but I 've seen that in some web pages and people saying it so I didn't want to risk it lol thanks anyway!