The repair should be free. (technically its chargeable) but accident happen and VM don;t normally charge for the repair.
You have 2 options.
1) try and call in and report it
2) wait for VM staff to get to the post and they will PM you for details and book a engineer to repair it.
You shouldn't have to wait weeks but may not get it fixed before next week.
If you need internet for work do you have a mobile you can rather to