These errors are:

Booking a best packers and movers at the last minute. Start the process of hiring a good moving company as early as possible so that you have a choice. The more time you spend planning your move, the more successful it will be.
Do not pass the pre-assessment. On the day of the move, it may be that the moving company doesn’t have a van big enough to carry it, or the cost is too high for you.
Booking the first available option. There is no need to rush, because the level of service and the price between different transport companies can vary greatly.
You haven’t asked enough questions. This can cost you dearly. Failure to understand the level of liability or any additional costs you incur may result in changes to your relocation budget. The more information you have, the better moving company you can find.