Thank you both for the replies. This case is of my sister (somehow I smell being discriminated).
She attended English classes till level 5 and has a hearing problem (which was declared in her application in the cover letter). Upon passing the citizenship test, she was interviewed where she asked to repeat the question (on multiple occasions due to her hearing problem). After the interview, she was told that they were not satisfied (reason was not explained to her) and asked her to attend more English classes. Then we wrote them a letter asking reason(s) for asking to sit on English classes, they replied with a letter, asking her to come to their office for another interview. Last week, she went to the CIC office (Scarborough) for an interview, where the interviewee told her that they are not satisfied (satisfied?? no explanation) and asked sit on English class for next 4-5 months until they contact. However, since two days her ecas has changed to "decision made".