Do not adhere to / forget about appointments, and ...
Do not adhere to / forget about appointments, and are difficult to get hold of. After three years with a re-growth system, unfortunately I have only bad to say about this company. The quality of the products I could probably live with despite not being the best, if not because the service is miserable / non-existent. Be prepared for everything to be in writing for you to be safe. It seems the least to the fact that the service / repair manager is really tired of his work, and does not speak very well to the customers.
