I’d put in a call to bank, because I don’t think Taiwan’s central bank raised rates from X% (in previous period) to (X+1)% (now). That’d be big news. The U.S. only just raised by 0.75% (called 75bps) and Taiwan didn’t do that much (if I remember the news).
Additional data point: our mortgage is in two different tranches / chunks (if I ever understood why, I’ve forgotten): for one of them, the interest rate recently rose from 1.045% to 1.170%; the other from 1.460% to 1.740%. So that’s more in line with how @KHHville interprets the text.
Total conjecture: the message they’re sending could be about the increase in their base rate, and that’s moving from 1.07% up to 1.10%. That way they can send the same message to all their customers. But no one pays that base rate - everyone has different rates based on who knows what kinds of formulas. It’s basically a notice that your rates will go up in this proportion.
EDIT: sort of like how central bank notices about interest rate increases do affect the interest rates normal people pay or earn, but not at exactly that number.