you won’t be able to access your chat list, but you can still answer incoming phone and video calls. “If you have notifications enabled, you can tap on them to read or respond to a message or call back a missed phone or video call,” WhatsApp notes.
After a few weeks of limited functionality, you won’t be able to receive incoming calls or notifications and WhatsApp will stop sending messages and calls to your phone, notes WhatsApp. In other words, your WhatsApp account will become completely useless.
WhatsApp will not delete your account but make it so useless you will have no choice but to accept its terms and conditions. Otherwise, use other applications like Signal or Telegram.