How much do you get for your 6th visit?

That is not true. They have a new system in place now.you make an addition 5$ every donation

After the first 5 visits, the amount they pay you depends on your weight. For example, I am 140 lbs. I can only donate about 75% of the capacity of the bottle. They pay me $20 per donation now. But, if you donate twice a week regularly, there are usually bonuses at the end of the month. So, if I donate twice a week every week for a month, I will make $160 + whatever bonus they promote. Keep in mind though that the bonus only applies when you have donated for a full calendar month. It's not a 30-day bonus, it's a bonus for the month of June or a bonus for the month of July.

How can you get detailed info if Kent & Federal Way offices NEVER answer the phone? Have tried 5x on different days & I let it ring 10x.

It varies for each person based on whether you're new donor, if there is bonus for 6th donation and a person's weight and the location. You'd get better answer calling location you're donating at.