Disappointing service

Isabella Gracia consultants called me and I did not want to increase any of the products they were giving me, but they authorized this despite my decline. And when I have been trying to resolve the issue, no one answers and when I try sending mail, it bounces back. But when they want to sell me things they are able to be on the phone. Very disappointing and now they are not even assisting me in the cancellation of their services. Anyone who can help please do.