Useless Customer Service With Regard To Billing

I am absolutely appalled by the customer service I have received from the TFG Group. I made a payment to my account on the 26 February 2016 via the TFG website by accessing my account profile. The amount was deducted from my bank account but never credited to my TFG account 2 weeks later I receive an sms stating my account is in arrears. <br> <br> Getting hold of someone to assist in the matter is another issue all together as staff kept transferring me to different departments telephonically and to date the issue has not been resolved. I have sent proof of payment to customer services who forwarded it to the remittance department. It is in clear black an white that I paid my account yet your online system has faults with crediting it to my account.<br> <br> I demand this be dealt with immediately or I will be closing my account.