Small typo fixed and 'Preserve' used in burn_from

pallets/unified-accounts/src/lib.rs

@@ -170,7 +170,7 @@ pub mod pallet {
         /// - `signature`: A signature generated by the address to prove ownership
         ///
         /// WARNING:
-        /// - This extrisic only handles transfer of native balance, if your EVM
+        /// - This extrinsic only handles transfer of native balance, if your EVM
         /// address contains any other native assets like XC20, DAppStaking unclaimed rewards,
         /// etc you need to transfer them before hand, otherwise FUNDS WILL BE LOST FOREVER.
         /// - Once connected user cannot change their mapping EVER.
@@ -280,7 +280,7 @@ impl<T: Config> Pallet<T> {
         T::Currency::burn_from(
             who,
             T::AccountMappingStorageFee::get(),
-            Protect,
+            Preserve,
             Exact,
             Polite,
         )