Question for MAZDA YADAK CO.

I own MAZDA type 3 year 1988 and it has run for ********KM so far, i had problem with the car and i took it to 1034 branch they told me some water has been entered inside the automatic gear box , so far it has cost me about ******** rials, also i heard you have changed this problem in your new models , My question is why you did not call this type like what TOYOTA does for their cares ? , this is the defect since meany of this model has the same problem. my TE # is 0912 216 1531. and thank you for your concern .