Could someone who works in Vodafone to help, please?

I recently found that Vodafone broadband is UNABLE to connect to ASB Bank's internet banking (fnc.asbbank.co.nz), which is extremely frustrating since I needed to access Internet banking to check customers payments a number of times every day.

Spoken to a Vodafone customer service in general but sounded he's got no idea what I was talking about. (Asking me to restart the computer and restart the router etc......)

Vodafone 3G/4G seems fine. Connecting via a VPN also seems fine.

It looks like it is a routing issue. Packets seem to get lost at 202-37-243-65.gis.global-gateway.net.nz

Trace route record attached.

The problematic broadband is in the Auckland CBD area (at Beach Road, Auckland Central)

ivor@ivor-OptiPlex-3020:~$ traceroute fnc.asbbank.co.nz
traceroute to fnc.asbbank.co.nz (210.55.180.58), 30 hops max, 60 byte packets
1 _gateway (192.168.1.1) 3.841 ms 3.914 ms 3.961 ms
2 121-74-91-254.telstraclear.net (121.74.91.254) 8.788 ms 9.048 ms 9.230 ms
3 203.97.78.54 (203.97.78.54) 9.614 ms 9.686 ms 9.932 ms
4 203.97.78.53 (203.97.78.53) 8.795 ms 8.672 ms 8.611 ms
5 g1-0-0-906.u12.telstraclear.net (203.98.18.66) 9.121 ms 8.916 ms 9.281 ms
6 202-37-243-65.gis.global-gateway.net.nz (202.37.243.65) 12.860 ms 10.600 ms 8.293 ms
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 202-37-243-65.gis.global-gateway.net.nz (202.37.243.65) 10.498 ms !X * *

I can confirm that ASB Bank's website is not down as it can be accessed from other ISP or via VPN.

If anyone here can please help, thank you to you all in advance.