Double Billing, Poor and Slow Customer Service

im a new client with Ignite and im on the 20 gig data cell c lte, first of all these people dont deduct on the suggested date for example the 25th, second of all i have be charged R389 instead of R210 as per my order, their system shows that i have two substitutions , i called to notify them of this and no action was done, i have been calling and emailing them yesterday and today, they have cancelled the other substitution and still the payment for that subscription reflects on my invoice, Sanette Lubbe has refereed me to Jackson Chizanga but still there is no change, ive only been with these people for a month and i have problems already