Poor Customer Service, again, MiX Telematics

Impossible to cancel contract or get any meaningful response from them. Gave notice of cancellation on 18 Jan 2022. Got an automated reference number. Phoned numerous times to confirm that the agreement will be cancelled. It is almost impossible to get to any consultant as you constantly get a high telephone volume message. Eventually after days got through to be told that they cannot see the vehicle on the system and we should contact accounts. This proofed to be even more difficult. In the meantime the debit order went off in March for a vehicle that is not on their system! Phoned on the 1st of March, got hold of someone that said they would escalate. Still waiting. Phoned on the 4th, left a message to be phoned back. Still waiting. Phoned on the 7th. Still high volume call message. Could not reach an operator, left a message to call back. Phoned today again. After 15 minutes, still high volume. Phoned customer care as it is impossible to speak to anyone in accounts. Customer care eventually answered and said they cannot help as the vehicle is not on the system. We must phone accounts. Got a direct number for accounts, which they also don't answer. Looking at Facebook and other comments on hellopeter, there is a serious issue at MiX Telematics when it comes to customer service and accounts. This is the second time we had to write a poor review on MiX telematics. I hate doing this, but it is the only way to get things sorted out.