diff --git a/contact.html b/contact.html
index e217a84..dcac20a 100755
--- a/contact.html
+++ b/contact.html
@@ -106,14 +106,14 @@
Trụ sở chính:
Tầng 4, Tòa nhà Ngân hàng ACB, 96 Nguyễn Khánh Toàn, Cầu Giấy, Hà Nội
- Tel: +84-24 6281 3888
-
Hotline: +84-983 453 879
+ Tel: +84 24 6281 3888
+
Hotline: +84 983 453 879
diff --git a/ecourse.html b/ecourse.html
index e68b01e..093f75c 100755
--- a/ecourse.html
+++ b/ecourse.html
@@ -199,14 +199,14 @@
Trụ sở chính:
Tầng 4, Tòa nhà Ngân hàng ACB, 96 Nguyễn Khánh Toàn, Cầu Giấy, Hà Nội
- Tel: +84-24 6281 3888
-
Hotline: +84-983 453 879
+ Tel: +84 24 6281 3888
+
Hotline: +84 983 453 879
diff --git a/en/contact.html b/en/contact.html
index 5377421..b098b28 100755
--- a/en/contact.html
+++ b/en/contact.html
@@ -107,12 +107,12 @@
Headquaters:
96 Nguyen Khanh Toan, Cau Giay, Hanoi
Tel: +84-4 6281 3888
-
Hotline: +84-983 453 879
+
Hotline: +84 983 453 879
diff --git a/en/ecourse.html b/en/ecourse.html
index 8d1d852..87da39d 100755
--- a/en/ecourse.html
+++ b/en/ecourse.html
@@ -211,12 +211,12 @@ your feedback at different stages and in the evaluation process within our compa
Headquaters:
96 Nguyen Khanh Toan, Cau Giay, Hanoi
Tel: +84-4 6281 3888
-
Hotline: +84-983 453 879
+
Hotline: +84 983 453 879
diff --git a/en/general-intro.html b/en/general-intro.html
index 02a12df..ca3b39a 100755
--- a/en/general-intro.html
+++ b/en/general-intro.html
@@ -177,12 +177,12 @@ Our employees say: I am proud of being a member of GK Corporation.
Headquaters:
96 Nguyen Khanh Toan, Cau Giay, Hanoi
Tel: +84-4 6281 3888
-
Hotline: +84-983 453 879
+
Hotline: +84 983 453 879
diff --git a/en/index.html b/en/index.html
index ef0e0ff..3824596 100755
--- a/en/index.html
+++ b/en/index.html
@@ -894,12 +894,12 @@
Headquaters:
96 Nguyen Khanh Toan, Cau Giay, Hanoi
Tel: +84-4 6281 3888
-
Hotline: +84-983 453 879
+
Hotline: +84 983 453 879
diff --git a/en/partner.html b/en/partner.html
index dbf7cb4..c3dfa79 100755
--- a/en/partner.html
+++ b/en/partner.html
@@ -161,12 +161,12 @@
Headquaters:
96 Nguyen Khanh Toan, Cau Giay, Hanoi
Tel: +84-4 6281 3888
-
Hotline: +84-983 453 879
+
Hotline: +84 983 453 879
diff --git a/general-intro.html b/general-intro.html
index 719e025..21732d3 100755
--- a/general-intro.html
+++ b/general-intro.html
@@ -177,14 +177,14 @@
Trụ sở chính:
Tầng 4, Tòa nhà Ngân hàng ACB, 96 Nguyễn Khánh Toàn, Cầu Giấy, Hà Nội
- Tel: +84-24 6281 3888
-
Hotline: +84-983 453 879
+ Tel: +84 24 6281 3888
+
Hotline: +84 983 453 879
diff --git a/index.html b/index.html
index 2f41077..68fa903 100755
--- a/index.html
+++ b/index.html
@@ -890,14 +890,14 @@
Trụ sở chính:
Tầng 4, Tòa nhà Ngân hàng ACB, 96 Nguyễn Khánh Toàn, Cầu Giấy, Hà Nội
- Tel: +84-24 6281 3888
-
Hotline: +84-983 453 879
+ Tel: +84 24 6281 3888
+
Hotline: +84 983 453 879
diff --git a/partner.html b/partner.html
index 2939ec2..d4d2eb7 100755
--- a/partner.html
+++ b/partner.html
@@ -178,14 +178,14 @@
Trụ sở chính:
Tầng 4, Tòa nhà Ngân hàng ACB, 96 Nguyễn Khánh Toàn, Cầu Giấy, Hà Nội
- Tel: +84-24 6281 3888
-
Hotline: +84-983 453 879
+ Tel: +84 24 6281 3888
+
Hotline: +84 983 453 879