Almost one full month, still unresolved SST093946

Almost one full month and ticket SST093946 is still not resolved. This ticket was logged via support on hellopeter due to a complaint logged. Today i receive the bill for R250 for the courier collection of the router at the start of this Month, yet the ticket is still not addressed R499 billed on 01/03/2023 for service i did not have. It was cancelled at the end of Feb 2023 - and the router was in supersonics possession by the 10/03/2023 - I cannot pay a invoice for March as i did not have any service in march, its almost a month now and this bill has still not been credited. On the accounts portal it states im overdue with the bill for march kindly urgently have this bill written off as it was cancelled end of feb, and due to a system error billed me for march again. I am only liable for R250 courrier fee. Thank you