No communication and poor customer service

Since mid-December 2022 I have been experiencing problems with the Safe Days feature on the Multiply app - I am no longer awarded "non-travelling safe days" for days when I don't use my car, meaning I am losing out on a significant amount of rewards each month in the form of the discount on my short-term insurance. On 3 January I sent an email to *** and received an automated response, but no proper reply. I then sent a follow up email on 10 January, and another one on 17 January. I did not receive a single response to any of these emails. As a result. I lodged a complaint on the Momentum website on 20 January, and received an automated response with complaint number 495228, advising that the matter would be reviewed and I would receive feedback within 2 working days. I heard nothing further, and on 27 January wrote to the designated person (Shana) handling the complaint at ***. I received no reply to the email, but on that day I did receive a phone call from Momentum to say they were investigating the matter and would provide feedback within two business days. Once again, I heard nothing further and so on 1 February I again wrote to Shana at ***. To date I have received absolutely no response, and in the meantime the problem persists. Every day that passes my monthly discount on short-term insurance is adversely affected. It is also a tremendous waste of time having to keep writing emails to people who don't respond. The lack of feedback and communication, and poor customer service is really disappointing.