uncollectables

uncollectables

or

uncollectibles

pl n
things that are not collectable
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References in periodicals archive ?
Telesphere has had a 20% holdback for uncollectables, while the other IXCs have charged half that.
Uncollectables are retained fees due to a high incidence of fraud that's plagued some 900 programs.
Telesphere, a pioneer of such things as flexible billing and non-barge-in service, initially ran a high incidence of uncollectables, as the LECs scrambled to figure out how to collect the money.
"Uncollectables are a horrendous problem with other common carriers and resellers.