No response

On Monday 31st August I called the call centre to query a debit on my account that I had no knowledge of. I was sent a cardholder dispute form that I completed and emailed back to the address I was told, [Email Removed]<br> <br> I then received an automated response telling me, amongst other things, that for debit card disputes I should email [Email Removed] which I duly did.<br> <br> It is now 4 days later and I have had absolutely no feedback, not even a phone call or email telling me the matter is being dealt with. <br> <br> I find it very bad customer service.