bad service and debiting but dstv is still of

I am not happy with multi choice its a on going thing since few month ago since i started on the price lock in march been problems ever since . i made arrangement for the multi choice team to debit 500 every month which they fail to debit and last month the 25.05.2019 they took 500 after debit that they turned my dish off advising i owe amount since march so i needed to pay for march April and June because they debit for may . but second last week of June my dish was disconnected due to the outstanding i call i was fine advising they will then debit on the 25.06.2019 the full amount then reconnect my dish .on the 25 June only a 1187.19 and when i went on the dstv whatsupp help service they said to make a payment amount of 241.25. to my understandng why would they not take the full amount as last spoke then i called them for this day over 3 times not one agent can call me back the sevrvice and agent at multi choice is no help at all . but tehy are quick to debit onces account .i just want my dish to be reconnected and from the new month i would like to make the 500 payment i sighed up for i feel so **** that i ever sighed up for the price lock if i knew what i was letting myself in for i would never have i would have stayed on the normal compacted i had for many years that i was a loyal customer i really don't deserve this .i also have been sending so many emails no response back once .