Zero service with an attitude

After dealing with this company for +- 5 years where they wrapped our company's vehicles and made signs to specs, the graphic designer - Pieter Connoway is giving us the "cold shoulder" when we enquire about services that needs to be rendered. Mails are not answered and phone calls are not returned. A 70% design fee is applicable all of a sudden, after we have been given them business for more than 5 years. I have already taken my business elsewhere