Incorrect Debits for last 2 months

We were sent a revised policy and we had accepted it via email & have proof of both yet the last 2 mths were debited a higher amt than the quote we accepted. I emailed in June and spoke to Sue Dhanesar who said it will be rectified yet June &July were debited with higher amounts. A week ago Adele Dr Vries responded to my email and I sent her proof of this she said she will go through the policy focal and get back asap but didn't. I emailed again her response was waiting for the ratings dept to get back to her and will respond asap a week later and she has done absolutely nothing. This is so frustrating esp since everything is in black and white. What the hell is wrong with Kings Price getting this correct. Such *********** employees who cannot resolve simple queries. Its like a huge investigation has to be done yet they have the emails oh and recorded telephone calls. I emailed again asking that this being resolved before the August Debit yet she didn't respond .