My mom was contacted by a debt collector about $1700. She said she could send $1000 and they said they would send payment arrangement info for remaining amt. They received $1000 and she could not reach them for weeks after. Received notice they still filed for garnishment, did not list $1000 payment on court docs, and now list amt due as $2400. Can pay balance in 3 weeks, but again cannot reach them. Job also has policy where she could be fired for garnishment. Should she still send payment to them? Is there anything she can do?