I babysat these kids today for a total of 8.5 hours. Two hours this morning, and the rest were in the evening. When I first talked to the mother, she told me she could only afford $6.00 an hour (I usually charge $10.00). She then texted me saying she discussed it with her husband and they would like to pay me $8.00 an hour. First of all, the mom was an hour late this morning and almost TWO HOURS LATE tonight. After I left, I saw that she only paid me $50. That is LESS THAN $6.00 an hour let alone $8.00. I am really upset at both the rudeness of being late without so much as a text and being severely underpaid. I want my money because I earned it, but I also don't want to be rude. How do I approach this? Thanks!