If you Google esso mobil app, I found another site full of complaints about gift cards and discount cards too - hoping there's an update with fixes very soon.
But I'm not even able to get in to change the number without getting the code - not sure I'm asking this properly - did you create a whole new profile with your family member number?
How did you get past the verify code part to change the phone number? I'm having the same issue. I need to get gas & linking the app to my purchases helps me keep track of my receipts I need at tax time. So frustrated!!
then choose the new mail icon and in to type cs_agent, it'll come up/populate the field. Then you can message them too. I've already got a reply asking for more details. I'm really hoping I don't need a new SIM - this same thing is happening to my k...