Wholesale Pricing Discount B2B

The service is shocking!!! I installed the app and quickly realised it wasn't for me. I've been trying for the past 2 days to get them to remove code left behind when I uninstalled the app. I get through to an agent. they message me and want me to try. I didn't have a backup. I have explained that we "DESPERATELY" need the code removing and still nothing. I've explained that it needs removing ASAP but as I say the service is terrible and nothing has happened apart from sending me a collaboration request.