As Charlotte says herself, there's a very good reason for the delay and that's because she suffers from dyslexia, which makes reading paperwork difficult. But as a qualified coach, I believe the fact that Charlotte was prepared to put off the paperwork is a sign of her EXCELLENT sense of priority, NOT a sign of poor personal performance.
On this subject, as on so many, MPs are damned if they do and damned if they don't. If they say they will take the pay rise they are greedy; if they claim they won't they are not believed. When trust is so low, and respect for their leadership is so lacking, it is hard to persuade anyone that you are sincere. Effective communication becomes impossible.