Dstv dishonest

After canceling my subscription with Dstv well within the notice period, Dstv has not returned the debit order they took off my account, call centre is incapable of helping and keep blaming previous agents for mistakes made, no solution to ensure a pensioner gets their money back, keep being placed on hold for 10's of minutes on end and then they disconnect your call resulting in you having to call back and wasting my precious airtime