Bossa Head Office more shocking than the poor stores

We went to Bossa Woodbridge Island a few weeks ago. Had a huge issue regarding the restaurant and stuff. The way they handle the issue in store and how the head office handle it was/is actually shocking. Take that's the issue when you start opening stores left right and center, that the quality of the business is going down. And what is more shocking that the head office not even bothered about whats happening at their stores.

We took a drive the to Woodbridge Island store for drinks and food. With our arrival, we were met with a very upset customer screaming and yelling about the poor service and stuff, about the management and the fact that he had to go fetch his own drinks. i told my guest if the want to stay or go but this is going to be very interested. there was no waiters around and we had to make our own way to a table. We probably waited almost 10min before someone came to the table. 2 order drinks while others decided. When we were ready to order our food and more drinks, was told they dont have any bacon. This is their famous burger day(Monday Burger Special). What was shocking, 9 of the burgers on the menu have bacon on. What is also shocking was that the advertise and claim they uses cheddar cheese on their burgers, but in fact they use processed/american cheese. So if you go to a place on burger monday, but they dont have any ingredients for their burgers, what are you suppose to do?? we spoke to the manager, which gave us excuses, bad mouthing the yelling customer. This place was so professional. And to top that really bad experience at Woodbridge Island was the fact that i did Direct Message Head Office via Facebook to raise this issue with them, they were not even bothered about this what was happening at their store. No contact, no follow up, nothing. The total opposite than any company that values their business and clients. Surely a thumbs up wont help and fix the issue.