Loan amount fluctuating

[Chickenandpenguin]

I feel like I should know the answer to this...but I dont!
I have a fixed rate loan with Santander that as of a few weeks ago, I can now see the balance of on my banking app. Which is great as I'm trying to pay it off early. I paid a lump sum of 2500 off about 2 mths ago and still owe 4,900 ish. (Originally borrowed 15000 at a rate of 12.3% interest). Since I've been able to see the balance I've noticed its risen by approx £4 over the few weeks. Why is that?! Should it be doing that?

Because this months interest has been added to the account is the most likely reason.

Are there early repayment charges on it?

I agree with super excited.

No, no early repayment charges. So would that happen over a few days (the interest being added)? As it's happened slowly rather than one amount.

Are they charging interest daily? My mortgage does this, goes up by about £2 a day or so.

Hmm I have no idea! Would that be particular to the loan or something the bank would do as standard across all their loans? Just wondering how I'd find out...