No client/customer service

I wanted to contact Assupol today to pay some outstanding premiums only to discover that the contact number they have on their website (***) has changed or not in use. I tried the other number (***) at 12:11 and I was on hold until 12:40 without going though to anyone. I then tried their self-help option on the website and repeatedly got an error message that the OTP they just sent to me is incorrect and thus could not go through. They also have a reputation of not responding to e-mails, I sent an e-mail to ‘***’ on Tue 2022/10/18 08:22 and I’m yet to receive feedback on that e-mail. I also tried the call-back option on their website but they let the phone ring just once and then they put the phone down, I’m really stuck and need assistance.