Q: GETTING AN "ALERT" SAYING I HAVE TO CALL 1844 215 2589. CAN'T DELETE AND GET BACK TO SAFARI

USING SAFARI ON IPAD WHEN I GOT AN ALERT SAYING THAT DUE TO A THIRD PARTY APPLICATION IN YOUR PHONE, IOS HAS CRASHED AND THAT I SHOULD CALL 1-844 215 2589. I'M SURE THIS IS A SCAM BUT CANNOT GET RID OF THE ALERT AND GET SAFARI RUNNING AGAIN. I HAVE REBOOTED AND SWIPED THE PAGE OFF MEMORY BUT IT WILL NOT GO AWAY. DON'T KNOW SOFTWARE VERSION BUT IT SAYS I AM UP TO DATE.