This is my experience. I think the complaint is obvious enough.
We have been paying £126/year for 6 licenses:
Didn't detect the malicious code in a word document - okay, it happens but this has been happening more and more commonly
I couldn't find where to submit the malicious file to Malwarebytes for processing. None of the suggestions I found by Googling worked.
I couldn't find where to contact them for support. After a long rabbit hole of following support page after support page I came to a "fill in the form" page with no form and a USA telephone number. My favourite page was this one:https://www.malwarebytes.com/support/business/#question a page which simply says "I have another sales question." and then ends with no explanation.
I know other malware protection options are cheaper and I've had enough now so just decided to cancel the subscription: Finally found the "My Account" website but I couldn't stop auto-renewal online
Managed to get the UK contact support telephone number from this page:https://www.malwarebytes.com/business/contact-us/ - the form still doesn't show, but at least the number is good.
UK support just answered the phone by the guy's name, didn't ask for any security questions just took my subscription number and told me my renewal date and cancelled it. Didn't even ask my name. Doesn't exactly show much in the way of security.