美西甲骨文经常有个试用代表给我发邮件，正常吗？

上次给我发了两封邮件，还说要打电话给我。
我就回了邮件说用起来很OK，有需要会主动联系你们的，结果今天又来邮件了。
难道非要升级到付费账户才行？
Hi XXX, You’re well into your 30 day trial period at this point, so I want to make sure we can connect before your account’s expiration date. I see you’ve been using OCI service. Is there anything you’re hoping to accomplish using that service? Looking forward to hearing from you. Best, 复制代码

山东省网友说：系统自动发的….

吉林省网友说：是的，