Hmm, just politely say "I'm not interested" then ok jor.

They will keep calling la, but not until the same person/bank for like 2-3 times a week.

More like month end, year end they will start calling.

Now that's rare la. Same bank with different banker calling you.
Mostly also I kena Many banks, but mostly only 1 time call.

But then again, I don't gives threat like that to them la. Next maybe I just ignore the call. Or I will email the banks to complain straight.