Discovery Insure horrible service

I started insurance with Discovery in February.At sales stage no one asked me for policy numbers for previous insurers.Then they sent an email later saying they need the infor or else they will increase my premium.I sent it 4 days later no one said a thing they increased my premium when i asked why they asked me for the same infor i had sent them nothing was done.I removed one of my cars from insurance but they still debited my account for 2 cars and at the high premium.I have called i have emailed and done everything in my powers but no one has been able to resolve this problem.I am really disappointed for such service from a company like Discovery.