What is your complaint about? They have a feature available but costs money which you just don't want to pay?
Counting on them to just "be nice" and do it for you anyway isn't really a valid option, nor something to base your objection on. If you don't like the service and aren't happy with the price then move on to someone else.
It's not a "computer" - it's a document signing/management service, and you could get your data out just fine. The person wants more functionality, which is actually available as a feature, but it costs money. So, pay the money and you get access to the feature.
Counting on them to just "be nice" and do it for you anyway isn't really a valid option, nor something to base your objection on. If you don't like the service and aren't happy with the price then move on to someone else.