When you have successful moved nothing broken, scratched or missing no questions no answers great service. How about few questions couple hours later? Cover the basics!.
Mobile phones are the cheapest and convenient means of contact when you are on the move so is good to have on the website but a Land line should be included because is traceable, if anything goes wrong you have a starting point.
Address inclusion is very important not just because you can pop in the following day and yell at them is a measure of openness and trustworthy. They will have a lot to lose if they don’t do the job properly.