In an initial reading it strongly implies Mayvenn thinks its customers don't know that checks can be redeemed for normal money. There is also a bit of a scale jump from "pay your rent, your car" to "your shoes". But I guess it is implied its $200 shoes.
Since this indeed seem like a pretty insulting way to address a business owner, maybe a more reasonable explanation is that Mayvenn earlier paid commissions in store credits and not actual money? An alternative would be that they pay in some sketchy way that can eventually be turned into normal money. Both alternatives would create a need to reassure prospective clients that they will indeed get real money at the end of the day.
If the hairdressers in the target market tend to have cash flow problems, it wouldn't be too surprising for them to not have bank accounts / be unaccustomed to handling checks. Even in America.
Since this indeed seem like a pretty insulting way to address a business owner, maybe a more reasonable explanation is that Mayvenn earlier paid commissions in store credits and not actual money? An alternative would be that they pay in some sketchy way that can eventually be turned into normal money. Both alternatives would create a need to reassure prospective clients that they will indeed get real money at the end of the day.