I changed the ownership from the ex owner to me ( new owner ) of the house, everything is in process but they told me it would take within or until 90 days before the name can be change, then only i pay one-time deposit through the app, so that's about 3 months, for SAJ it's only taking about 2-3 days, and i paid deposit on the spot, any idea why TNB takes so long ?

So is it just a form of formality ? In actual don't need to wait 90 days ?