SPUR Head Office doesn't control Spur specials

On Monday afternoon I went to Spur in Seapoint and was told by the waiter and manager that I cant order a double Burger on the Monday Night Burger Specials only single burgers, that very same night we went to Spur in Bayside Centre and was told we can order a double burger but only the beef burger, in the past I visited Tygervalley Spur and you could buy any double burger you want !!!!??? I've even been at the Spur in milnerton where I had to pay R6 extra for the texan blaze burger sauce.<br> <br> This is very inconvenient, can every spur just do what they want? Should head office not set the rules and implement the specials to all the stores, as it seems each spur can do as it please and this is not nice for the customers who does visit different spurs