We don't accept more participants along the way at a discount. That's just nonsense. The price is the price.
And 48 guests is not a big group for us. Weekends we have between 50 to 100 guests and it's very much manageable with 3 to 4 guides.. Maybe not for you, as you seem more like you wanted a guided beer tour. This is a pub crawl. It's to party to meet other travellers and have fun.
Not for Karen's who want to complain on the internet.
Please don't come back.