Very poor show Web Africa

I have been a Web Africa client for about 6 years and generally enjoyed good service over that time , until recently. I received a statement that did not include a payment I made . I spoke to several agents , sent POP but nothing changed. I informed the agents that I work from home and need my wifi service sorted . I was promised that they would send the POP to finance and it will take a day or 2 and it will be sorted. No feedback but my service was suspended so eventually I paid the incorrect invoice in order to reinstate my service . I have just checked my statement again and 3 weeks later my statement does not reflect my payment of 6th August .Somebody is definitely asleep at the wheel in finance .