Bp poor service

On 03-09-21 iat around 9am , i stopped at the Bp garage at Broadacres shopping centre. I filled up with fuel then parked in front of the shop. On the board outside , I noticed a Combo special (hot dog and energy drink) I entered the shop and asked for the combo at the coffe counter. I was told that it was no longer available. I pointed out that it was still being advertised outside and that they then should give it to me at that price. The lady said no , so i asked for the manager. A superviser arrived and asked what the problem was. I xplained again to him but he alao said no. I then noticed another Combo special on the screen and asked for that combo . Again i was told it was also no longer available ? Again i asked why it was still being advertised and was told that they ( staff) could not change the board , only BP can do that. So i asked what other specials were available and was told none , as they were waiting for the new combos . Seriously ? So the staff dont remove the "expired " combo special ads . The superviser also need traing on how to resolve problems with customers , especially when the store is at fault . i just feel they should have given me that special at that price . The superviser went outside and proceede to remove the "expierd ads " from the wall . Poor service , poor customer care skills . Bp has lost my support .