bad service

my services were disconnected on 09/05/2018 while payment was made on 07/05/2018 I contacted their customer service and was advised to provide proof of payment which I did. I was reconnected again on 09 May 2018 but this morning 14th May 18 it was disconnected again I contacted them again and was told payment is not reflecting and I was charged reconnection fees I don't why because they disconnected after the payment was made