AltAir 12 aka One Source - Michigan Scammer company claiming they are subcontracted by ATT Canton Michigan

I am in an apartment community in Canton.  We had these 'akair 12' reps show up on the property to which our staff told them they need to leave since we have a strict no solicitation on the property rules.  They claimed they are a company hired by ATT to help with 'promotional' items and have leads of current ATT users, going to their door to help upgrade and change their bundle packages.  Every complex has their own ATT rep so the complex called theirs to which their ATT rep said they have NEVER heard of this company and are NOT affiliated with them whatsoever.  They had to leave. Scammers!!!! Watch out - some wear shirts that look like the ATT logo in the corner but does not actually say ATT .... some are dressed in regular clothes.  None of #'s of managers or ATT people that can confirm they are workers for ATT.