Post this in the OPEN DISCUSSION and you'd get a rich source of what-to-do's.
Unfortunately, this happens. Everyone has said something of useful value, and more importantly, its always better to identify the facts and what you want remedied.
If its the unsatisfactory job, list the dissatisfaction and the various follow-ups (whether in writing or by phone-calls). Compile the facts and sequence of follow-ups. That makes a stronger case.
126 tailed by a 203, 129 leading the pack.