Terrible service

Just to let you know how unhappy i am with vodacom being loyal customer for so many years making sure that my bills paid to tea...even set up debit order for 20th of every month thinking that debit had gone through 20/01 comes monday everything normal funds are there thinking that debit had gone throuhh waited till monday evening22/01 tuesday this morning was shocked to see that vodacom didn't debit on 20th yet i kept funds till monday evening just incase....now i been charged unpaid amount of R60 and debit order didn't go thru little to realise poor service received telling me oh its not 60 it should be R100 i mean what the helll...why do we create debit order for then????? So unhappy and disappointed vodacom