Avoid Toyota Boshoku if you hope to get paid

Our company 2KO Africa, in Cape Town, did some training for Toyota Boshoku staff in Durban. We received a PO and then the training was delayed a long time (months). We contacted Toyota Boshoku to ask if we should cancel the invoice, and were told no, they still wanted the training. We had quoted a pre-payment price of 15% and made it clear that this price was for pre-payment. The PO we received was for the pre-payment price. After training dates were booked, we were told they only pay post delivery of services, and if we wanted to charge the post delivery price we would have to start again and raise a new PO. We said, OK we will honour the price, provided payment is done promptly afterwards. The course went very well. Then the problems started. We would not receive payment promptly. We first needed send a statement. The after that we were told we would get paid on the last day of May only. They asked for an updated invoice because the original invoice was from 2022. We updated the invoice to May date, and finance then told us, they only pay 30 days after statement so with the new invoice date that would be the end of June.

Needless to say, when we contacted them for payment a week before the end of June as a reminder, because company's that drag payments often do not do what they promise, we suddenly cannot get a response from anyone. We then contacted a dozen different people including the CEO, and we did not receive a single response at all from anyone. Not one response.