Dunkin’ Donuts complaint: Rude and unprofessional cashier

Sometime late inJune 2021, I dropped by to this store to get my usual drinks before going to work . Without asking me before handling me my drinks , this lady attempted to hand me the drinks in the cup holder which I did not ask for. As much as I understand the reason behind why she can’t take back the cup holder which I haven’t received or touch it , I refused to take it too bec of the COVID 19 . The lady in the cashier was on top of her voice yelling at me When I did not take it . At my end I did did not take it right and good . As a consumer , I have to be treated right no matter what . Today July 6, I drop by to get my drinks again and you know what did they do , they put me in a black list not serve me . I left the store and followed it up with a call to the manager. He stated that yes , he blocked me off in his store. Is this the way how to treat a consumer? I need you to investigate this matter , otherwise this will go further, I don’t intend to come back again to patronize this store .I just want you to straighten things out. May I hear from you the resolution to this .