Gite taxation rates

Hi everyone, sorry, I know this subject has been raised a number of times but I am still confused. According to many of you good people on this site, as a home owner who is renting the majority of his home as a gite, I should be paying the 14% cotisation rate. I was paying the higher rate of 24.6% for the first part of the year up until July when I heard that I should only be paying the 14% rate. I then sent back my tax returns calculating them on the 14% rate but today I received a letter from RSI stating that I owe them money as I paid the lower (incorrect rate, according to them) rate.


Can anyone please give me advice on this matter.


Thanks for any help.


Ralph