Despite na ang dami kong nakikitang problems dito sa migration from citibank to unionbank app, so far so good naman ang experience on my end.
I added my citibank cc sa unionbank account ko days before the deadline. So far, I have no problems encountered in logging in.
As for the payment, this is my first time paying since migration and I was quite surprised kasi ang bilis nag reflect. Nagbayad ako yesterday, Apr 12, and was quite nervous din dahil may nababasa akong issues dito and mejo malaki yung amount ma binayaran ko. Upon checking the app today, nag reflect na yung payment. Nung citibank pa, it takes 3-5 business days before ma post yung payment. Btw I paid using the usual app na ginagamit ko which is Maya, I used the unionbank biller name na, same credit card number pa din sa citibank since I have not yet received a new card.
Yun lang. Sharing this in case may iba din na kinakabahan magbayad since the migration.