MWeb frustration

I am very frustrated with how difficult it is to get hold of MWeb. My husband has had an account for many years and yes, he should have cancelled it years ago as it is NEVER used and I pay for it every month. Problem now is to do anything on the account we need to call them. He can log into his account, but has to register for an OTP to do anything on it and send the registration form from his mweb email address, BUT in order to send any mail he has to register for an OTP and send the from from his MWeb address.......or call their customer care line that you cannot get through to, unless maybe you have to hold the line for 10 minutes or more, by which time your airtime runs out. Yes you can log a query online IF you can register for the OPT, which means you have to access your account etc etc. I would really appreciate it I knew how to do this without wasting valuable time. If only there was a way to email them, but I have not been able to find an email address on their website for queries.