Guys, my phone is gradually dying

[l1ynch]

I have an Asus Zenfone 8 flip for 3 years and despite I felt good with this phone now I'm having problems to pay by Google pay, I cannot use the wifi anymore, I cannot use some apps and nevertheless I'm dealing with just two sim cards and yesterday now only a sim card for disposition. I guess I would better replace the phone

[Falcon_ASUS]

@l1ynch 
According to what you described, I would suggest you bring back your device to our service center for further confirmation.
The following is the contact information:
https://www.asus.com/support/service-center-location 
Also you can contact the local service center for help.
The following is the contact information:
https://www.asus.com/support/CallUs# 
Sorry for any inconvenience it may be caused.