Sunoco

On 12-3-18 I stopped at the Sunoco Self Service Fuel Site on Rt 219 in Grantsville, MD. They have a huge Sunoco Site. The goalpost is Sunoco, the dispensers are Sunoco, however there is a decal posted above the diesel nozzle that says---(DIESEL SOLD FROM THIS PUMP MAY NOT BE SUPPLIED BY SUNOCO)? When I questioned the 2 cashiers they claimed they were not aware of these decals and neither could tell me what brand of diesel I had just purchased? I returned to this same site on 12-23-18 and the stickers are still on these Sunoco Dispensers? Again I questioned both cashiers and once again they claimed they were unaware of these and had no idea of what brand of diesel they are selling? When I see a Sunoco Goalpost and pump diesel from a Sunoco Dispenser I expect that I am purchasing Sunoco Diesel? Not some unknown, unbranded generic diesel? This is ridiculous? I will NEVER purchase diesel at this site ever again.