Warning: vent mode ON.
If you are a parent whose child takes music lessons (or lessons of any kind) with a private instructor, please keep in mind that your child's teacher, as much as he or she may enjoy working with your child, is not doing it for sheer recreation but because the income earned is a necessary part of the household budget. So when you are late with a payment, not only your teacher but your teacher's family suffers the consequences. And when there are two piano teachers in the family with almost 20 students between them, and more than half of those students are late with payments in the same month, the consequences for that family rise from the level of merely inconvenient to significantly stress-inducing.
If you are one of those really cool parents who always pays your child's private lesson teacher on time, you're my hero! Keep it up!
If on the other hand your child's teacher is currently awaiting your payment, please take care of it now. And if you value that teacher, please don't put him or her in the position of having to scramble to meet bill payments or sacrifice his or her dignity by begging you for the money you have committed to pay for his or her professional services.