Discovery bank migration

Since you guys have changed to Discovery bank, please assist me with the payment options. I was called by your team who advised me i need to download the discovery bank app and migrate my credit card. I have done that and waiting for my new card. Now since i was making EFT payments from my bank to the card, can i still pay using the same reference and account number?

Also, what happened to my miles? After migrating my credit card, my miles that i accumulated through gym all vanished.

Please contact me urgently with feedback.