If you have an email from the scheduler stating the fee/bonus for specific shops you should be okay. When you tried to contact the scheduler by email did you do it as a 'reply' to the email stating the fee/bonus? If so, they don't even need to fumble around through their papers to see what was promised for what.
For me, since I have it in writing in an email, I would go on and complete the shop(s) as agreed and fight it later in case it did not show up.
Sometimes we get into nail biters. I did a $10 with a $30 bonus and reimbursement up to $10. It was for a company I work with infrequently and on a reporting platform I don't often use. I spent around $9 on the shop to be reimbursed. When I looked at what they expected to 'pay' it was $40. Left me wondering if I was going to see my reimbursement. It did come through as $49 without my contacting anyone but I figured I could readily be engaged in trying to recover my reimbursement.