Avoid ADvTECH schools

ADvTECH continually offers abysmal service. Whilst my children's school is wonderful and the teaching staff are incredible, this parent organisation is an embarrassment and it is leading me to looking for another school. They have, over the course of a few years, made multiple mistakes with invoices, not corrected them for despite multiple requests, not responded appropriately to emails or calls, and then sent threatening emails saying that they will suspend my children if money (that I do not owe) is not paid. Given that I have paid upfront for school fees, the fact that they are threatening to suspend my children over THEIR mistakes in aftercare fees leans towards ******ion/******** coercion. They are essentially pressuring me to pay a disputed amount by threatening harm (my child being suspended). This entirely undermines my ability work effectively with them while they sort out their errors.