Settlement does not reflect, after assurances , it will be done in 30 min!

Hi,

I have settled my car loan two days ago, its still not appearing on my accounts (online) as being settled? When I called to settle, the amount was indicated, how much, I promptly paid! This is totally unacceptable, after the service consultant telephonically informed me, after our call it would reflect correctly online within 30 minutes, its two days later?