Service suspended without any reason!!!!

HI<br> <br> I had my debit order details changed before the debit order date and to my surprise they still went and debited the old account which subsequently failed.<br> I made payment on 5 March and on 16 March they suspend my account due to unpaid accounts!!!! WTH???<br> I sent proof of payment to two different email centres and NOT to my surprise, didn't get any confirmation that they are working on the issue.<br> I then phone the contact centre three times yesterday where i had to hold for more than 40 minutes at a time. I tried phoning this morning again and guess what the centre line gets cut when i select to speak to a consultant....<br> This is pathetic service....how do you guys even check your account if you did not pick up the direct payment more than a week ago!!!<br> I need this sorted out as a matter of urgency!!!