Debit Order Confusion - Feeling **********

Why not give a zero star! I tried to cancel my data contract in January 2022, but due to past poor experience I called again to confirm on 18 February 2022. (Ref: ***) They had no info on it, so I had to cancel again. I was informed that the R199 contract would end on 31 March 2022. Even though I did not want it converted to prepaid, they did that. Fortunately they did, so I can use up the last Gb. On 31/04/22 the signal stopped, so I assumed that the contract was done. I switched on today, and saw that I had over 2Gb left, and no additional data was added, but the debit order went off on the 31/03/22. I called them from *** on 01/04/22 at around 11:30 (1st ***, then 082135) and eventually got to accounts, and was informed that this deduction was only for February, and that I would get another deduction at the END of April for March. How can this be? Vodacom does not start deducting for a new contract two months from when it started? This is also the second time Vodacom refuses to give a reference number for a call, stating that by quoting date and time, they will pull up a recording. Everyone knows that those recordings get deleted. I ALSO DON'T WANT THE STANDARD USELESS "COPY & PASTE" RESPONSE!