non-payment 
noun [mass noun]
Failure to pay an amount of money that is owed: homes repossessed for non-payment of mortgages...
- It makes great sense for the provider as they are covered in the event of non-payment.
- A couple of years ago an acquaintance of mine ended up in court for non-payment of Council Tax.
- At present, non-payment of a fine leads to courts serving warrants on defaulters.
- laboratorian
- laboratory
- laboratory assistant
- laboratory bench
- laboratory chest
- laboratory conditions
- laboratory frame
- laboratory school
- laboratory system
- laboratory technician
- laboratory test
- labor bank
- labor bill
- labor book
- labor brigade
- labor bureau
- labor candidate
- labor class
- labor coach
- labor colony
- labor content
- labor cost
- Labor Day Weekend
- labored
- laborer