the issue is between you and the company you work for.
The company is treating you as an employee not an independent contractor.
you could fill out IRS form SS-8 to have the IRS determine your employment status.
read the instructions
the iRS will request the company you work for to provide their version of the SS-8
from the two filings a determination will be made
don't expect a quick reply
https://www.irs.gov/pub/irs-pdf/fss8.pdf
Worker requests determination. If a worker has requested a
determination of his or her status while working for you, you will
receive a request from the IRS to complete a Form SS-8. In
cases of this type, the IRS usually gives each party an
opportunity to present a statement of the facts because any
decision will affect the employment tax status of the parties.
Failure to respond to this request will not prevent the IRS from
issuing an information letter based on the facts available to it so
that the worker can fulfill their federal tax obligations. However,
the information that you provide is extremely valuable in
determining the status of the worker
