Frustrated Discovery Invest client

I took out an investment policy with Discovery Invest and agreed my premiums to be R1000 per month and now they are deducting R3000. I emailed discovery support and since they gave me a reference number: *** no further action has been taken. I emailed my financial advisor Arlene Armstrong no reply whatsoever. I want to cancel my investment as I want nothing to do with this company as they bridged their promises and customer experience is a nightmare.