Grow Sow Greener review for Rebuy Personalization Engine

Fantastic app however not compatible with our wholesale pricing app. I also for some reason had access to someone elses store/rebuy login..i could literally make changes if i wanted.... A bit of a worry. They said they fixed it but i still had access. Since uninstalling rebuy our cart function dosent work anymore and also have no acces to developer help to remove whatever code has been left behind (which i was told all code would be removed) please help, this is affecting my business