incorrect billing

Good day<br> <br> <br> its been a on going issue.. finially when i thought everything was right it was not... in the month of April i did get debited cause of the credit given back to me due to migrating which was incorrectly sold to me... from the credit given back to me aprils bill was deducted from it and there should of been a difference brough forward... but at the same time they charged me for the usage of the incorrect migration which was not my fault.<br> <br> <br> <br> they took 6 months to get this sorted. i have made endless calls and emails but still not resolved. at the same time the customer service was not good at al and had many calls dropped on me.... can we please get this sorted once and for all and get back the money that should been given back please!!!!