TELKOM - Cant get billing right

I have a Month to Month LTE Sim Card.

I cancelled it in Mid Jan with the PDF and ID Like they need.

Telkom took money off of my account end Jan - I can understand the Month notice.

They tried to take off end of FEB ? - I had it reversed and sent mail again asking why.

End March - Again took money off. ?????????????

I can not get thru to them on the phone or the chat on there Website.