WHY REMITANO AUTO PURCHASE LTC ON MY BEHALF ?

TODAY 19 JAN 2021, I RECEIVED EMAIL FROM REMITANO .
INFORM I DID AN TRANSACTION BUY LTC HAD BEEN SUCCED.

PROBLEM IS, I DID NOT DO THIS.
WHAT HAPPEN ?
WHAT SHOULD I DO ?
IS REMITANO WALLET UNSAFE ?
BECAUSE THE MONEY WITHDRAW FROM MY MYR WALLET