Wallet app completely drains my iPhone battery after installing Apple Card.

1 month ago I applied for and installed a new Apple Card on my phone. Since then, the wallet app has drained about 8 to 10% of my battery every hour. When I am using cellular data, it drains close to 15% of battery every hour. If I leave the house, I now need to put my phone on airplane mode, or else it eats up nearly all of my 5gb cellular data plan in a matter of hours. 

I have tried absolutely everything listed on a similar discussion thread about this topic from a few years ago. I have called Apple support, and I have visited an apple store. Nobody knows how to fix it, or what to tell me. I left the Apple store today with no resolutions, and two “last resort” solutions of … Buying a new iPhone, and if that doesn’t work attempting to create a new iCloud account, and transferring the Apple Card to that account (which I don’t think is even possible). 

My phone is the iPhone SE (2nd generation), and I am running iOS 15.3.  (I believe I was running 15.1 when I first installed the Apple Card). 

I have tried….

-Restarting 

-Updated latest iOS

-Closing wallet app

-De-selected “double-click” home button

-Turn off background app refresh on ALL apps

-turned off wallet notifications

-Erase phone and re-install from iCloud backup

-erase phone and install from iTunes. 

-erase phone and fresh reinstall (from phone)

-Removed wife from family share

-Turned off location tracking for Wallet

-Turned off app tracking

-turned off wireless data for wallet. 

-deleted wallet app

…

as of now, my phone is literally useless — due to the fact that I can not take it off of airplane mode when I leave the house, in fear that it will completely deplete my battery, and use up all of my data. Any help is greatly appreciated.