A parent bought my details from Tutor Hunt for A Level. This has been a big job as I need to read a lot of texts (typically the student is studying things I haven't taught or read) and resource it all from scratch. She's the only parent to book me by paying a fee for my details, the others have been via my advertisements. Anyway, first session went well. I was paid in cash, but the mother asked if she could have my bank details to pay me online as it was easier. I went during the day for the second session. I text her my details as she wasn't at home. She's never responded. I left my details with the student and I emailed her a summary of the session with my details again. This was three days ago and I still haven't had an acknowledgement to my text or email and I haven't been paid yet. I'm due to go again in a few days and I'm not sure what to do. I don't think there's any problem with what I'm doing, I think she's very busy (from what I gather, a demanding professional job) and has probably not thought about it. However, this is my only source of income and I can't afford to put all this time into a student with no guarantee of payment. I'd really appreciate any suggestions about how to deal with this. Thanks.