Very slow service.

Customer services is slow. They claim 48 hours maximum for a response. I settled my vehicle in full. I forwarded the proof of payment to TFS. # work days already past, and the amount is still not adjusted against my account. Phoned customer service. Forwarded the proof of payment directly to the agent that assisted. Still not adjusted against my account. With the reference number correct as per their statement, it should be instantly against the account. Agent said it could be 2 weeks to reflect properly. This is totally unacceptable. I require the Natis and a paid up letter to be able to sell the vehicle. Very ********* business practice as far as I am concerned. Not one query I have ever had has been settled in 48 hours, as advertised.