Misteling or Mistelling: How To spell?
The word Misteling is misspelled against Mistelling, which is present continuous of "Mistell"
Mistelling has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings miste & ing which should not be misspelled with single 'L'
Wrong Spelling:  miste-l-ing  Correct Spelling:  miste-ll-ing 
Find more wrongly spelled words of Mistelling to spell it well.