At 3:00 p.m. on Sunday, November 27th, my party of 4 arrived at the restaurant, and the parking lot was empty, and we could see there was only a couple inside as we walked up to the door. As we entered, there was an older lady standing at the hostess stand. I think she had been standing there for a bit, based on the expression on the face of the waitress, and only got noticed because my party was within sight of the kitchen. A manager(?) sat us, and said the waitress would be right with us, but it took her several minutes. The waitress sat the older lady at a dirty table, so she ended up moving herself to a different table. After we were seated, it took a long time for the waitress to come to our table. Mind you that they restaurant is basically empty. Since we rarely eat at Friendly's, and the menu is different each time, we were ready to order when she arrived. My two daughters and wife each ordered the '3 for Me' deal, and my daughters each asked for a milkshake instead of the fountain drink that came with the meal. One of them ordered onion rings as the side. My wife ordered soup as her side. It was taking a long time for our food to come, so I went to the cash register to get our waitress' attention, and asked that she bring my wife's soup. Right after I sat down, our food came out. Luckily, our food was good. We got checked on once even though was a total of 5 people in the entire restaurant, since the couple left shortly after we got there. We got our check, and discovered we got charged full price for the milkshakes instead of an upgrade price and for the side of onion rings. I told the waitress, and asked for a manager. Some young girl came out, and said, "What's up?" despite I could hear the waitress explain what I said to her. She said, "What do you want me to do?" My wife said we shouldn't be charged for the onion rings, and she just started walking away, and I said some money should be taken off for the milkshakes. I went to the bathroom to find out all they took off were the onion rings. Horrible customer service by the waitress and manager on duty. Too bad the customer service wasn't as good as the food.