No, Allied is violating the federal laws. Report their activities to the local AG's office as well file your complaints at the FTC and the BBB.
You must train yourself with the legal powers guided in the
FDCPA. You will realize your rights and deal with them accordingly.
Calling endlessly at work or home is illegal under the federal laws. The collection calls must be placed between 8 am and 9 pm. If they want to place the calls outside this duration, they must have your consent first.
Besides, your mother or anyone else should not be called if they are in contact with you. Ask your mother to send a cease and desist letter to their mailing address. It will be violation of the federal law if they contact her further after receiving the cease and desist letter. Make sure that your mother sends it through certified mail and return receipt requested for proving the actions.
Get the debt validated from Allied for which they are collecting. They have to put the details in writing about the creditors and the principal amount along with interests accrued. Do not make any payment before you have reviewed the details properly and found it to be correct.