Money deducted but service disconnected

I took out a wifi deal by dsl telecom for telkom. On the 29th of July.2022 Telkom debit order went off R848.70 and on the 02nd of August 2022 I got an invoice that I owe.telkom R1048.20 which they will deduct end of August 2022 but my payment is not been deducted on. The invoice. What make.matters worse they took my money and disconnected my.wifi.router