Enrolled on time for a study program. Registration...

Enrolled on time for a study program. Registration is nicely confirmed. Invoicing is arranged. And then you will not hear anything for a long time. Until I contact myself because the start date of the training is already over 2 days. NCOI calls back that there is a change, the training in the chosen form does not take place, there is no invoicing, under the argument of "this is how we work here at NCOI". Unfortunately. NCOI, 'how high do you set the bar' when it comes to customer-oriented work? Probably it is a threshold .......