“I have already provided them Form W8-BEN.”-->So, you have no any earned/ unearned taxable income that you eanred in the US as a non-resident alien, then why have you provided them with the Form W8BEN??? As you can see, Form W8BEN is used to establish that you are not a U.S. person , claim that you are the beneficial owner of the income for which Form W-8BEN is being submitted, and claim a reduced, or zero, withholding as a resident of a foreign country with which the United States has an income tax treaty. What I mean is that as long as you have no income in US, you do not need the Form W8BEN. In addition the Form W8BEN can be used to claim exception from domestic information reporting and backup withholding for income,i.e., interest on bank deposits Interest, dividends, rents, and royalties from a foreign source, that is not subject to foreign-person withholding.
“How can I compel this company to stop issuing these erroneous 1099-MISC forms, and/or correct them?”---> you need to contact the company that keep issuing the errorneous 1099-MISC Forms and ask them to correct 1099-MISC Forms. If you are unsuccessful getting a satisfactory answer to the discrepancy or getting them to agree to send you a corrected 1099-MISC, then you will need to call the IRS at (800) 829-1040; as they filed errorneous 1099MISC forms with incorrect information, they should file a "corrected" copy as soon as possible. They need to check the box at the top of the form that says corrected. If they are just correcting a Tax ID #, they need to complete all the information such as your name and address exactly the same as the original except put the correct Tax ID number and zero dollars in amount box. They need to complete a new 1096 form to transmit the corrected 1099MISC Forms and write in bottom margin of the 1096 "Filed to Correct SSN/TIN" or ETC.