I have a parent who agreed to paying four tutoring sessions in advance as a block in order to get a discounted price - more of a discount than I originally wanted to give but anyway.
I sent her terms and conditions saying your regular slot is yours only after payment is received and to please send payment at least 24 hours before the session.
She was late with her first payment - around midnight after multiple reminders but it was a holiday season so I figured she was genuinely busy.
She used up the last of four sessions last Wednesday and Thursday I sent her a reminder regarding payment and a reminder that her son should sent completed work I set - I mark, grade and plan the next session accordingly.
She saw message, sent the work but no payment. I reminded her this afternoon and she's just told me she was out, will send it later and what time is tmrws session.
I've responded I will need to postpone due to late payment. Am I being unreasonable?