Custom Fields in Emails

When i use the following:

${sr.getAddonFieldValue("CustomColumn34sr")}

The output is 125.

125 is the ‘Reference id’ of my profile. If I put someone else's name in the field, it shows their ID. How can I change this to show their name instead if their reference id?

I have followed this:

“Hi Chris,
Please try this instead and let me know if this works:

$AccountObj.getCustValues("sr_cust_sbm_proj_code",$AccountObj.getResourceBundle()).getCaption($sr.getAddonFieldValue("CustomColumn5sr"))

Cheers,
Danny”

so in my case, it will be:

$AccountObj.getCustValues("sr_cust_test_listtt",$AccountObj.getResourceBundle()).getCaption($sr.getAddonFieldValue("CustomColumn34sr"))

the ‘125’ is from ${sr.getAddonFieldValue("CustomColumn34sr")}

We are on cloud hosting.