modify contact information (#2392)

vesoft-inc · Dec 14, 2023 · dc95bc6 · dc95bc6
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diff --git a/docs-2.0-en/3.ngql-guide/9.space-statements/5.drop-space.md b/docs-2.0-en/3.ngql-guide/9.space-statements/5.drop-space.md
@@ -8,7 +8,7 @@
 
 !!! warning
 
-    After you execute `DROP SPACE`, even if the snapshot contains data of the graph space, the data of the graph space cannot be recovered. But if the value of `auto_remove_invalid_space` is set to `false`, contact the sales team to recover the data of the graph space. 
+    After you execute `DROP SPACE`, even if the snapshot contains data of the graph space, the data of the graph space cannot be recovered.
 
 ## Prerequisites
 

diff --git a/docs-2.0-en/import-export/nebula-exchange/ex-ug-compile.md b/docs-2.0-en/import-export/nebula-exchange/ex-ug-compile.md
@@ -6,7 +6,7 @@ This topic introduces how to get the JAR file of NebulaGraph Exchange.
 
 The JAR file of Exchange Community Edition can be [downloaded](https://github.com/vesoft-inc/nebula-exchange/releases) directly.
 
-To download Exchange Enterprise Edition, [contact us](https://www.nebula-graph.io/contact).
+To download Exchange Enterprise Edition, [contact us](mailto:[email protected]).
 
 ## Get the JAR file by compiling the source code
 

diff --git a/...k8s-operator/4.cluster-administration/4.1.installation/4.1.2.cluster-upgrade.md b/...k8s-operator/4.cluster-administration/4.1.installation/4.1.2.cluster-upgrade.md
@@ -12,7 +12,7 @@ This topic introduces how to upgrade a NebulaGraph cluster created with NebulaGr
 
 - Only support upgrading the NebulaGraph version from {{operator.upgrade_from}} to {{operator.upgrade_to}}.
 
-- For upgrading NebulaGraph Enterprise Edition clusters, [contact us](https://www.nebula-graph.io/contact).
+- For upgrading NebulaGraph Enterprise Edition clusters, [contact us](mailto:[email protected]).
 
 
 ## Prerequisites

diff --git a/docs-2.0-zh/3.ngql-guide/9.space-statements/5.drop-space.md b/docs-2.0-zh/3.ngql-guide/9.space-statements/5.drop-space.md
@@ -8,7 +8,7 @@
 
 !!! warning
 
-    执行`DROP SPACE`后，即使快照中存在该图空间的数据，该图空间的数据也无法恢复。但是如果`auto_remove_invalid_space`的值为`false`时，可联系商务人员恢复数据。
+    执行`DROP SPACE`后，即使快照中存在该图空间的数据，该图空间的数据也无法恢复。
 
 ## 前提条件
 

diff --git a/...k8s-operator/4.cluster-administration/4.1.installation/4.1.2.cluster-upgrade.md b/...k8s-operator/4.cluster-administration/4.1.installation/4.1.2.cluster-upgrade.md
@@ -12,7 +12,7 @@
 
 - 只支持升级 {{nebula.name}} {{operator.upgrade_from}} 至 {{operator.upgrade_to}} 版本。
 
-- 如需升级 {{nebula.name}} 企业版，[联系我们](https://yueshu.com.cn/contact)。
+- 如需升级 {{nebula.name}} 企业版，[联系我们](https://discuss-cdn.nebula-graph.com.cn/uploads/default/original/3X/d/1/d1e1b0e55e29776ee60e3f34c843474ec884393d.jpeg)。
 
 ## 前提条件